UNIT 1 REVIEW.

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Presentation transcript:

UNIT 1 REVIEW

Which represents the following sentence: Twenty less than triple a number is thirty 20 – 3x = 30 20 – 3x > 30 3x – 20 < 30 3x – 20 = 30

2) Lauren is building a tree house with her dad 2) Lauren is building a tree house with her dad. The dimensions of the floor are 9 feet by 6 feet. What is the area of the floor, measured in square yards? 6 square yards 15 square yards 30 square yards 54 square yards

3) Gary is 3 years older than twice the age of his sister Elena 3) Gary is 3 years older than twice the age of his sister Elena. Which shows an equation for this situation? G = 6E G = 2E + 3 E = 3G + 2 G = 3E + 2

5) Which of the following points satisfies the linear inequality shown below (6,0) (4, 1) (0, -6) (0,2)

7) Which of the following graphs models the equation x + 2y = -8

10) Amy and her sister are making lemonade for the school dance 10) Amy and her sister are making lemonade for the school dance. Their recipe makes 2 quarts of lemonade. If they made 35 times the recipe, how many GALLONS of lemonade will Amy and her Sister have? (hint 4 qts=1 gal) 17.5 gallons 35 gallons 70.5 gallons 140 gallons

11) Which of the following graphs models the equation y = x + 1

12) Which of the following graphs models the function y ≤ -4x + 1

13) Which of the following points satisfies the linear inequality shown below (0,0) (-6, 0) (0, -6) (0,6)

15) Disney parks make $600 more than twice what Six Flags makes in a day. Disney made $18,652 yesterday. Write a model that demonstrates this situation. 18652 = 600 + x 18652 = 600 + 2x 18652 > 600 + 2x 18652 + 600 = 2x

17) Sarah’s parents are filling their swimming pool 17) Sarah’s parents are filling their swimming pool. Her pool holds 22,000 gallons. It takes 16 hours to fill. What unit would you use to represent the rate that the water is flowing into the pool Hours Gallons Gallons per hour Gallons per minute

18) Which of the following graphs models the function y = -2x – 4

19) Write a model that represents the following: Peter is 10 more than 3 times his brother Aaron’s height. P = 3A + 10 3A + P = 10 3A + 10P = P 3P - 10 = A