1.) Write 3,090,000,000,000 in scientific notation. 2.) Simplify 3(2x + 8) 3.) What is 5 0?

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Reynold Jenkins
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Warm Up NO CALCULATORS 1.) Write 3,090,000,000,000 in scientific notation. 2.) Simplify 3(2x + 8) 3.) What is 5 0? Wobble Chairs: Bailey, Deysy, & Tyler W 4.) Find the reciprocal of a.) 6 / 5 b.

1 Warm Up NO CALCULATORS 1.) Write 3,090,000,000,000 in scientific notation. 2.) Simplify 3(2x + 8) 3.) What is 5 0? Wobble Chairs: Bailey, Deysy, & Tyler W 4.) Find the reciprocal of a.) 6 / 5 b.) 1 2 / 3 c.) 3 5.) Solve 32 4 ( 2) + 9 = 6.) To what number sets does the answer to problem 5 belong: natural, whole, integer, or rational? 7.) 6th graders do # 10 in your MCA packet & 7th graders do #9 11 in your MCA packet (problems start on page 11 7th graders) Answers are below for 6th grade and on the next page for 7th.

3 Content Objectives: I can determine if two figures are mathematically similar. I can find their scale factor. Lesson 7.2A Wumps Language Objective: I can explain why figures are mathematically similar or not. Assignment 7.2A Due Quiz 7.2 is after lesson 7.2E

4 Mug Wump Zug

5 Lug

6 Glug Yes, if Are the figures mathematically similar? 1.) The corresponding angles are the same measure (congruent). and 2.) The corresponding sides have a scale factor. Are Mug and Zug mathematically similar? Support Your Answer with Work 1.) Are the corresponding angles congruent? Yes OR No 2.) Do the corresponding sides have a scale factor? Yes OR No Zug's width Mug's width = If the fractions (ratios) are equal, then that number is the scale factor. If Mug and Zug are mathematically similar, then Zug is a Wump. If Mug and Zug are not mathematically similar, then Zug is an imposter. Write Wump or Imposter on the line by Zug's name on his graph. Zug is a Wump with a scale factor of. OR Zug is an imposter. Are Mug and Lug mathematically similar. Support Your Answer with Work 1.) Are the corresponding angles congruent? Yes OR No Lug is a Wump with a scale factor of. Zug's height = Mug's height 2.) Do the corresponding sides have a scale factor? Yes OR No Lug's width Mug's width = Lug's height Mug's height = OR Lug is an imposter.

7 Are Mug and Bug mathematically similar. Support Your Answer with Work 1.) Are the corresponding angles congruent? Yes OR No 2.) Do the corresponding sides have a scale factor? Yes OR No Bug's width Mug's width = Bug is a Wump with a scale factor of. OR Bug is an imposter. Are Mug and Glug mathematically similar. Support Your Answer with Work 1.) Are the corresponding angles congruent? Yes OR No 2.) Do the corresponding sides have a scale factor? Yes OR No Glug's width Mug's width = Glug is a Wump with a scale factor of. Write the rules of the characters that are Wumps below. Where do you see the scale factors in the rules? Bug's height Mug's height = Glug's height Mug's height = OR Glug is an imposter. Scale Factor: Scale Factor: A rule forms a mathematically similar object when the x and y coefficients are the same. When the coefficients are equal that number is called a scale factor. Write a rule that makes a new Wump. Write a rule that makes a new Imposter.

8 Here are some new characters and their rules. Decide if the new characters are mathematically similar or not. Homework 7.2A Name #1 25 I can determine whether two figures are Period mathematically similar and find their scale factor I can plot coordinate pairs on a coordinate grid *1.) Slug: (x, y) (7x, 3y) Yes with a scale factor of. OR No, because: *2.) Hug: (x, y) (5x, 5y) Yes with a scale factor of. OR No, because: *3.) Smug: (x, y) (8x, 9y) Yes with a scale factor of. OR No, because: 4.) Chug: (x, y) (5x, y + 5) Yes with a scale factor of. OR No, because: 5.) Krug: (x, y) (x + 7, y + 3) Yes with a scale factor of. OR No, because: *6.) Finish the rule that would make a Wump with a scale factor of 10? (x, y) (, ) Use the rules below to describe what happens to the character's dimensions (width and height) in relation to Mug's dimensions. *7.) (x, y) (7x, 3y) *8.) (x, y) (7x, 7y) Width Height 9.) (x, y) (0.5x, 0.5y) 10.) (x, y) (x, 2y) Width Height Width Height Width Height 11a.) What rule would you use to make a character that is 4 times Mug's width and 7 times Mug's height? 11b.) Would this character be a Wump? Yes OR No 11c.) Explain why or why not. Review Chapter 1 *12.) Rachel worked 3 days last week and earned $ Assuming that she makes the same amount per day, how much will she make in 5 days? Chapter 2 *13.) A travel trailer is marked down from $19,300 to $15,575. What is the percent change? "Find the old and find the new..." Over

3) x -7 4) 3 < x. When multiplying or dividing by a NEGATIVE number, we SWITCH the inequality sign!

3) x -7 4) 3 < x. When multiplying or dividing by a NEGATIVE number, we SWITCH the inequality sign! Name: Date: / / WARM UP 1) What is the difference between an inequality and an equation.? QUIZ DAY! 2) One must be at least 35 years old in order to be president of the United States. If x represents age,