Section 1.1 Task List
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1 Summer 2017 Math Section Section 1.1 Task List Work through each of the following tasks, carefully filling in the following pages in your notebook. Section 1.1 Linear Equations in One Variable Work through Objective 1 then do problems #1-3 Work through Objective 2 then do problems #4-14 Work through Objective 4 then do problems #16-18
2 10 Math Section 1.1 Summer 2017
3 Summer 2017 Math Section Section 1.1 Linear Equations in One Variable Section 1.1 Objective 1: Determine if a Given Value Is a Solution to an Equation What is an algebraic equation? What is an algebraic expression? What do algebraic equations have that algebraic expressions do not have? Work through the Interactive Video on distinguishing between equations and expressions. - In this video, write the example of the item in the video that is NOT an equation. Why is it not an equation? What is an equation in one variable? Write 3 examples. Write the definition of Linear Equation in One Variable.
4 12 Math Section 1.1 Summer 2017 Linear equations are also called because the exponent of the variable is. Work through the Interactive Video on distinguishing between linear and nonlinear equations. Circle the equation that is linear. Explain what makes the other two equations nonlinear. a. 5 x 7 x 2 4 b. 3x 5 3 x 8 c. 3 x What are solutions to an equation?
5 Summer 2017 Math Section Work through Example 1 and write your notes here. Determine if the given value is a solution to the equation. a. 2x 3 11; x 4 b. 3y 8 5y 4; y 2 c. 2 w 1 1 ; w For part c) watch the accompanying video on determining if a given values is a solution to an equation. NOW WORK SECTION 1.1 HW EXERCISES #1-3 Section 1.1 Objective 2: Solve Linear Equations in One Variable What are equivalent equations? What is the simplest form that is the goal when solving a linear equation in one variable?
6 14 Math Section 1.1 Summer 2017 Write down the Properties of Equality that are used to find simpler equations. Watch the interactive video for a deeper explanation of these properties. What does the Caution Statement say? Work through Example 2 and write your notes here. Use the properties of equality to solve each equation.( Be sure to show all work for checking your solution.) 1 a. 3x 1 5 b. 8 n 3 2
7 Summer 2017 Math Section Work through Example 3 and write your notes here. Solve: 6x 5 2x 3 Work through the video that accompanies Example 4 and write your notes here: Solve: 5( x 6) 2x 3 ( x 1) What is the distributive property? (Look at the solution to Example 4 in your e-text.) NOW WORK SECTION 1.1 HW EXERCISES #4-8
8 16 Math Section 1.1 Summer 2017 When an equation contains fractions, how do you remove the fractions? Work through the video that accompanies Example 5 and write your notes here: x Solve: x Work through the video that accompanies Example 6 and write your notes here: 1 x 1 Solve: (1 x ) NOW WORK SECTION 1.1 HW EXERCISES #9-12
9 Summer 2017 Math Section How can decimals be removed from an equation? How can the appropriate power of 10 be determined? Work through the video that accompanies Example 7 and write your notes here: Solve: 0.5n n 0.5n Work through the video that accompanies Example 8 and write your notes here: Solve: 0.1( y 2) 0.03( y 4) 0.02(10) NOW WORK SECTION 1.1 HW EXERCISES #13-14
10 18 Math Section 1.1 Summer 2017 Write down the Guidelines for solving Linear Equation in One Variable. Guidelines for Solving Linear Equations in One Variable Step 1: Step 2: Step 3: Step 4: Step 5: Step 6:
11 Summer 2017 Math Section Skip Objective 3 and go to Objective 4. Section 1.1 Objective 4: Use Linear Equations to Solve Application Problems Write down the 6-Step Problem-Solving Strategy for Applications of Linear Equations. Problem-Solving Strategy for Applications of Linear Equations Step 1: Step 2: Step 3: Step 4: Step 5: Step 6:
12 20 Math Section 1.1 Summer 2017 Work through Example 10 and write your notes here: Roger Staubach and Terry Bradshaw were both NFL quarterbacks. In 1973, Staubach threw three touchdown passes more than twice the number of touchdown passes thrown by Bradshaw. If the total number of touchdown passes thrown between Staubach and Bradshaw was 33, then how many touchdown passes did each player throw? NOW WORK SECTION 1.1 HW EXERCISES #15 Work through the video that accompanies Example 11 and write your notes here: Before filling up her car, Kenya sees the price of gasoline as $3.26 per gallon. When she finishes filling the tank, Kenya owed $ How many gallons of gasoline did she purchase?
13 Summer 2017 Math Section Work through the video that accompanies Example 12 and write your notes here: A laptop computer is on sale for 15% off the original price. If the sales price is $552.33, find the original price of the laptop. NOW WORK SECTION 1.1 HW EXERCISES #16-18
14 22 Math Section 1.1 Summer 2017
15 Summer 2017 Math Section Section 1.2 Task List Work through each of the following tasks, carefully filling in the following pages in your notebook. Section 1.2 Linear Inequalities in One Variable Work through Objective 1 then do problems #1-2 Work through Objective 2 then do problems #3-5 Work through Objective 3 then do problems #6-8 Work through Objective 4 then do problems #9-13
16 24 Math Section 1.2 Summer 2017
17 Summer 2017 Math Section Section 1.2 Linear Inequalities in One Variable Section 1.2 Objective 1: Determine if a Given Value Is a Solution to an Inequality Write down the 5 different types of inequality symbols. Watch the interactive video on distinguishing between equations and inequalities and determine which item is NOT an inequality. Work through the interactive video that accompanies Example 1 and write your notes here: Determine if the given value is a solution to the inequality. a. 3x 4 8; x 2 b. 2 n 5n 4; n 6 What is the difference between a strict inequality and a non-strict inequality? NOW WORK SECTION 1.2 HW EXERCISES #1-2
18 26 Math Section 1.2 Summer 2017 Section 1.2 Objective 2: Graph the Solution Set of an Inequality on a Number Line What is a finite set? What is an infinite set? What is set-builder notation and why is it used? Give an example of a set written in set-builder notation. Sketch the set xx 4 on a number line:
19 Summer 2017 Math Section Work through Example 2 and write your notes here: Graph each solution set on a number line. xx b. x1 x 7 c. xx 3 d. x0 x 4 a. 0 e. xx 2 f. x 1 x 5 g. x 3 x 2 h. xx is any real number NOW WORK SECTION 1.2 HW EXERCISES #3-5
20 28 Math Section 1.2 Summer 2017 Section 1.2 Objective 3: Use Interval Notation to Express the Solution Set of an Inequality Read through Objective 3 and take any notes here. This table summarizes three ways of expressing intervals: You MUST be able to sketch solutions on a number line, then use interval notation and set-builder notation to describe the same solution.
21 Summer 2017 Math Section You must know the meaning of the lower and upper bounds of an interval or solution set. Work through the interactive video on determining lower and upper bounds and take notes here. Work through Example 3 and take notes here. Write each solution set using interval notation. a. xx 5 b. x 2 x 10 c. xx 3 d. x 6 x 0 e. x 1 x 5 f. xx is any real number NOW WORK SECTION 1.2 HW EXERCISES #6-8
22 30 Math Section 1.2 Summer 2017 Section 1.2 Objective 4: Solve Linear Inequalities in One Variable What is the definition of a linear inequality in one variable? Work through the interactive video on the difference between linear and nonlinear inequalities to learn how to identify linear and nonlinear inequalities and take notes here.
23 Summer 2017 Math Section Write down the 2 properties of inequalities seen below: Properties of Inequalities: Let a, b, and c be real numbers. 1. Addition Property of Inequality: 2. Multiplication Property of Inequality: Work through Example 4 and take notes here. Solve the inequality 4x 8 3( x 2) 3x. Graph the solution set on a number line and write the solution in interval notation.
24 32 Math Section 1.2 Summer 2017 Work through the video that accompanies Example 5 and take notes here. Solve the inequality 2 5( x 2) 4(3 2 x) 7. Write the solution set in set-builder notation. Work through the video that accompanies Example 6 and take notes here. Solve the inequality m m 1 5 2m. Write the solution set in interval notation NOW WORK WEEK 1 HW EXERCISES #9-13
25 Summer 2017 Math Section Section 1.3 Task List Work through each of the following tasks, carefully filling in the following pages in your notebook. Section 1.3 Compound Inequalities; Absolute Value Equations and Inequalities Work through Objective 3 then do problems #1-8
26 34 Math Section 1.3 Summer 2017
27 Summer 2017 Math Section Section 1.3 Compound Inequalities; Absolute Value Equations and Inequalities (Start at Objective 3 of Section 1.3) Section 1.3 Objective 3: Solve Absolute Value Equations An Introduction to Absolute Value Read through Objective 3 and watch the video on an intro to absolute values and take notes here: Write down the Absolute Value Equation Property Work through Example 8 and take notes here: Solve m 4 8.
28 36 Math Section 1.3 Summer 2017 Work through the video that accompanies Example 9 and take notes here: Solve 1 3x 4. Work through the video that accompanies Example 10 and take notes here: Solve 2x 5 0. Work through Example 11 and take notes here: Solve 3x 7 4. Write down the Strategy for Solving Absolute Value Equations.
29 Summer 2017 Math Section Work through the video that accompanies Example 12 and take notes here: Solve 2 w Work through the video that accompanies Example 13 and take notes here: Solve 3 2 m 8 2. NOW WORK SECTION 1.3 HW EXERCISES #1-8
30 38 Math Section 1.3 Summer 2017
31 Summer 2017 Math Section Section 1.4 Task List Work through each of the following tasks, carefully filling in the following pages in your notebook. Section 1.4 Formulas and Problem Solving Work through 1.4 TTK 3, then do problems #1-3 Work through Objective 1 then do problems #4-10 Work through Objective 2 then do problems #11-21
32 40 Math Section 1.4 Summer 2017
33 Summer 2017 Math Section Things To Know Section 1.4 Formulas and Problem Solving 3. Use Linear Equations to Solve Application Problems (Section 1.1) Do you remember the 6-Step Problem-Solving Strategy for Applications of Linear Equations? (See your Week 1 notebook pages) Use this strategy to answer homework problems #2-4. NOW WORK SECTION 1.4 HW EXERCISES #1-3 Section 1.4 Objective 1: Solve a Formula for a Given Variable What is the definition of a formula? Give an example of a formula that describes the perimeter of a rectangle.
34 42 Math Section 1.4 Summer 2017 Work through the interactive video on using a formula to find the value of a variable and use the formulas provided to find the value of the unknown variable. a. P 2l 2 w; P 46 cm, l 13 cm. Find w. b. A lw; l 12 in, w 8 in. Find A. c. 1 3 V Bh; V 200 m, h 25 m. Find B. 3 We are often interested in solving for specific variables of a formula. In Example 1, we are given the formula for the area of a triangle and the formula for the perimeter of a rectangle. Work through Example 1 now and see if you can solve each formula for the given variable. a. 1 A bh; Solve for b. b. P 2l 2 w; Solve for l. 2 (You may want to watch the video to see the solution to part b. ) NOW WORK SECTION 1.4 HW EXERCISES #4-10
35 Summer 2017 Math Section Section 1.4 Objective 2: Use Formulas to Solve Application Problems It is important to memorize certain geometric formulas for area and perimeter. Write down the formulas for area and perimeter for each shape below: It is also worth memorizing certain geometric formulas for volume and surface area. Write down the formulas for the volume and surface area of each shape below.
36 44 Math Section 1.4 Summer 2017 Work through the video that accompanies Example 2 and write your notes here: The length of a college basketball court (rectangle) is 6 feet less than twice its width. If the perimeter is 288 feet, then what are the dimensions of the court? NOW WORK SECTION 1.4 HW EXERCISES #11-12 Work through the video that accompanies Example 3and write your notes here: 2 A 13-ounce Maxwell House coffee can has a surface area of 186 cm. Find the height of can if its radius is 5.0 cm. NOW WORK SECTION 1.4 HW EXERCISES #13-14
37 Summer 2017 Math Section Describe what is meant by uniform motion. Work through the video that accompanies Example 7 and write your notes here: At 9:00 AM, Rick left his house to go fishing. He rode his scooter at an average speed of 10 mph. At 9:15 AM, his girlfriend, Deb, went to Rick s house and then followed his path on her bike at a rate of 15 mph. If Deb caught up with Rick at the same time that they both reached the fishing hole, how far is it from Rick s house to the fishing hole? At what time did Rick and Deb arrive at the fishing hole? NOW WORK SECTION 1.4 HW EXERCISES #15-17
38 46 Math Section 1.4 Summer 2017 What is the definition of concentration? Suppose that a 50 lb bag of fertilizer contained 12% pure nitrogen. How many pounds of pure nitrogen are contained in this bag? Carefully work through the animation that accompanies Example 8 and take notes here. Suppose 2 gallons of a 10% bleach solution is mixed with 3 gallons of a 25% bleach solution. What is the concentration of bleach in the new 5-gallon mixture?
39 Summer 2017 Math Section Work through the video that accompanies Example 9 and write your notes here: How many milliliters of a 70% alcohol solution must be mixed with 30 ml of a 40% alcohol solution to result in a mixture that is 50% alcohol? (Fill in the blanks) NOW WORK SECTION 1.4 HW EXERCISES #18-21
40 48 Math Section 1.4 Summer 2017
41 Summer 2017 Math Section Section 2.1 Task List Work through each of the following tasks, carefully filling in the following pages in your notebook. Section 2.1 The Rectangular Coordinate System and Graphing Work through Objective 1 then do problems #1-6 Work through Objective 2 then do problems #7-8 Work through Objective 3 then do problems #9-10 Work through Objective 4 then do problems #11-13 Work through Objective 4 then do problems #14-16
42 50 Math Section 2.1 Summer 2017
43 Summer 2017 Math Section Section 2.1 The Rectangular Coordinate System and Graphing Section 2.1 Objective 1: Plot Ordered Pairs in the Rectangular Coordinate System Read through Objective 1: - What is an equation in two variables? - Give three examples of an equation in two variables. - Work through the interactive video to practice identifying equations in two variables. - What is another name for the rectangular coordinate system and who was the inventor of this system?
44 52 Math Section 2.1 Summer Create a diagram of the rectangular coordinate system and label the x-axis, y-axis, Origin, and label the four quadrants. (See Figure 2). - You may want to watch the video to see a brief overview of the rectangular coordinate system. Read through the next two pages in your e-text and take notes here: -What is the definition of an ordered pair? -What is the definition of the coordinate plane? - You may want to watch the video to get a deeper explanation of how the signs of the coordinates of an ordered pair affect its location on the coordinate plane.
45 Summer 2017 Math Section Work through the video that accompanies Example 1 and write your notes here: Plot each ordered pair in the coordinate plane. In which quadrant or on which axis does each point lie? a. A( 4,4) b. B( 5, 2) c. (0, 2) C d. 3, 5 D e. E(3.5, 4.5) f. F (2,0) 2 2 NOW WORK SECTION 2.1 HW EXERCISES #1-6 Section 2.1 Objective 2: Determine if an Ordered Pair is a Solution to an Equation Describe what it means to be a solution to an equation in two variables.
46 54 Math Section 2.1 Summer 2017 Work through the interactive video that accompanies Example 2 and write your notes here: Determine if each ordered pair is a solution to the equation 2x y 7. a. (2, 3) b. (3,1) c. 3 2, 10 NOW WORK SECTION 2.1 HW EXERCISES #7-8 Section 2.1 Objective 3: Find Unknown Coordinates Sometimes we are given one coordinate of an ordered pair that is a solution to an equation in two variables and wish to find the other coordinate. Carefully read through Objective 3 and then work through the interactive video that accompanies Example 3. Find the unknown coordinate so that each ordered pair satisfies the equation 3x 4y 20. a. (8,?) b. (?,2) c. 2 3,? NOW WORK SECTION 2.1 HW EXERCISES #9-10
47 Summer 2017 Math Section Section 2.1 Objective 4: Graph Equations by Plotting Points Every equation in two variables has a graph in the coordinate plane. The graph is the set of all ordered pairs that are solutions to the given equation. One way to graph an equation in two variables is to find several ordered pairs that are solutions, plot the points in the coordinate plane, and connect the points with a curve. Write down the 3-step Strategy for Graphing Equations by Plotting Points Step 1 Step 2 Step 3 Work through the interactive video that accompanies Example 4. (Part b and c are on the following page) Graph each equation by plotting points. a. 2x y 1
48 56 Math Section 2.1 Summer 2017 b. y x 2 4 c. y x NOW WORK SECTION 2.1 HW EXERCISES #11-13
49 Summer 2017 Math Section Section 2.1 Objective 5: Find x-and y-intercepts What is the definition of a y-intercept? What is the definition of an x-intercept? Take a look at your graph of 2x y 1from Example 4a on the previous pages. The y-intercept of 2x y 1is. The x-intercept of 2x y 1 is, Work through Example 5: What are the x-and y-intercepts of the graph below? NOW WORK SECTION 2.1 HW EXERCISES #14-16
50 58 Math Section 2.1 Summer 2017
51 Summer 2017 Math Section Section 2.2 Task List Work through each of the following tasks, carefully filling in the following pages in your notebook. Section 2.2 Relations and Functions Work through Objective 1 then do problems #1-3 Work through Objective 2 then do problems #4-7 Work through Objective 3 then do problems #8-10 Work through Objective 4 then do problems #11-16 Now Complete Quiz 1
52 60 Math Section 2.2 Summer 2017
53 Summer 2017 Math Section Section 2.2 Relations and Functions Section 2.2 Objective 1: Identify Independent and Dependent Variables Read through Objective 1 and take notes here: What is the definition of a dependent variable? What is the definition of an independent variable? When an equation involving x and y is not solved for either variable, we call the independent variable and the dependent variable. Work through Example 1: For each of the following equations, identify the dependent variable and the independent variable(s). a. y 3x 5 b. w ab c 2 3 c. 2 3x 9y 12 NOW WORK SECTION 2.2 HW EXERCISES #1-3
54 62 Math Section 2.2 Summer 2017 Section 2.2 Objective 2: Find the Domain and Range of a Relation What is the definition of a relation? What is the definition of the domain of a relation? What is the definition of the range of a relation? Work through the Interactive Video that accompanies Example 2: Find the domain and range of each relation. a. 5,7, 3,5, 6,7, 12, 4 b. NOW WORK SECTION 2.2 HW EXERCISES #4-5
55 Summer 2017 Math Section Work through the Interactive Video that accompanies Example 3 and work part a) and b): Find the domain and range of each relation. a. b. NOW WORK SECTION 2.2 HW EXERCISES #6-7 Section 2.2 Objective 3: Determine if Relations are Functions A special type of relation is function. Define the term function in the box below: Definition A function is
56 64 Math Section 2.2 Summer 2017 Describe how to determine if a given set of ordered pairs represents a function. Work through the video that accompanies Example 4 and work parts a), b), and c). Determine if each of the following relations is a function. b. 4,5, 7, 3, 4,10, 6,1 a. 3,6, 2,5, 0,6, 17, 9 c. 2,3, 0,3, 4,3, 6,3, 8,3 NOW WORK SECTION 2.2 HW EXERCISES #8-10
57 Summer 2017 Math Section Section 2.2 Objective 4: Determine if Graphs are Functions If we are given a graph of a relation, we can quickly determine if the relation represents a function by using the vertical line test. Define the vertical line test in the box below: Vertical Line Test Work through the animation that describes why the vertical line test works. Below are the two graphs seen in this animation. One of the graphs represents a function and the other does not. Explain why?
58 66 Math Section 2.2 Summer 2017 Work through the animation that accompanies Example 5: Use the vertical line test to determine if each graph is a function. NOW WORK SECTION 2.2 HW EXERCISES #11-16 YOU ARE NOW READY TO TRY QUIZ 1. REMEMBER THAT YOU CAN TAKE THIS QUIZ UP TO 10 TIMES.
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