Evaluate: Domain and Range

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1 Name: Domain and Range Evaluate: Domain and Range 1. Kiera was driving in her neighborhood and approached a stop sign. When she applied the brakes, it took 4.5 seconds to come to a complete stop from a speed of 0 miles per hour. If Kiera creates a graph of her speed versus time as she applies the brakes, which of the following would describe the domain for her graph? A 0 x 0 B 0 x 4.5 C 0 y 0 D 0 y 4.5. The graph below shows the height of a ball thrown from the top of a building. Which inequality best describes the range of the graph? Height (feet) Time (seconds) A 0 x 4.4 B 0 x 95 C 0 y 4.4 D 0 y 95 Region 4 Education Service Center Supporting STAAR Achievement: Algebra I

2 Domain and Range 3. The graph below shows the total cost of parking in a downtown garage. Which of the following describes the range of the graph? Total Cost ($) Months A {0, 1,, 3, 4, 5, 6, 7, 8, 9, 10, 11} B {50, 100, 150, 00, 50, 300, 350, 400, 450} C {105,, 135, 4, 195, 5, 5, 8, 315, 9, 345, 11, 405} D {105, 135, 165, 195, 5, 55, 85, 315, 345, 375, 405} 4. The graph below shows the height of a rocket launched from the ground. Which inequality best describes the domain of the graph? Height (feet) A 0 x 10 Time (seconds) B 0 x 400 C 0 y 10 D 0 y 400 Region 4 Education Service Center Supporting STAAR Achievement: Algebra I

3 Name: Making Predictions from Scatterplots Evaluate: Scatterplots 1. A scatterplot shows the number of miles driven versus the gallons of gasoline remaining in the gas tank of a car. Which correlation best describes the relationship shown on the scatterplot? Miles driven A Constant correlation Gallons of gasoline B C Positive correlation Negative correlation D No correlation Region 4 Education Service Center Supporting STAAR Achievement: Algebra 1

4 . Shelia collected data on ticket sales for the homecoming dance. Ticket Sales Making Predictions from Scatterplots Number of Tickets Sold Day Number of Ticket Sales If she plots the data on the scatterplot shown above, which equation best models the trend line for this data? A y 9 x 4 B y 9 x 4 C y x 4 9 D y x 4 9 Region 4 Education Service Center Supporting STAAR Achievement: Algebra 1

5 Making Predictions from Scatterplots 3. Students in a group of chess teams submitted data about hours of team practice and the number of matches the team won. The graph shows the results of the data. Based on the data, if a team practices 4.5 hours per week next year, which is the best estimate of the number of chess matches a team could expect to win? Chess Team Practice Matches Won Hours of Weekly Practice A B 19 C 14 D 1 Region 4 Education Service Center Supporting STAAR Achievement: Algebra 1

6 Making Predictions from Scatterplots 4. The scatterplot below shows the algebra grades and the number of absences of different students for the first semester. Algebra Grades Algebra Grades Number of Absences Which of the following is the best interpretation of this scatterplot? A As the number of absences increase, algebra grades stay the same. B C Students who have fewer absences seem to have higher algebra grades. Students who have the most absences seem to have higher algebra grades. D As the number of absences decrease, algebra grades stay the same. Region 4 Education Service Center Supporting STAAR Achievement: Algebra 1

7 Name: Factoring Trinomials Evaluate: Factoring Trinomials 1. The area of a rectangular rug can be expressed as x 3x 10 square units. If the length is x 5 units, what is the width? A x + 5 units B x + units C x units D x 3 units. The trinomial x + x 3 is modeled below. Key x x x x What is the factored form of x + x 3? 1 1 A ( x 1)( x 3) B ( x + 1)( x 3) C ( x + 1)( x + 3) D ( x 1)( x + 3) 3. Which of the following expressions is equivalent to x 5x 4? A ( x 3)( x + 8) B ( x 3)( x 8) C ( x + 3)( x 8) D ( x + 3)( x + 8) Region 4 Education Service Center Supporting STAAR Achievement: Algebra 1

8 Factoring Trinomials 4. The area of a rectangular region can be expressed as x + 5x 84 square units. If the width is x + 1 units, what is the length? A x 1 units B x + 17 units C x 7 units D x + 7 units Region 4 Education Service Center Supporting STAAR Achievement: Algebra 1

9 Name On You Own Domain and Range

10 John rides his bicycle 1 miles per hour on the trail. The trail is 4 miles long. Answer the following questions about this situation. A) Circle One: Discrete or Continuous B)

Algebra I STAAR Practice Test A

Algebra I STAAR Practice Test A 1 What is the value of if (, ) is a solution to the equation 3 1 5 1? A C B 3 D 5 5 A plumber charges $5 for a service call and $15 per hour for repairs. She uses the graph