UNIT 1 REVIEW. 1)Which represents the following sentence: Twenty less than triple a number is thirty A.20 – 3x = 30 B.20 – 3x > 30 C.3x – 20 < 30 D.3x.

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Presentation transcript:

UNIT 1 REVIEW

1)Which represents the following sentence: Twenty less than triple a number is thirty A.20 – 3x = 30 B.20 – 3x > 30 C.3x – 20 < 30 D.3x – 20 = 30

2) Kara purchases a car for $30,000 if V = 30,000(.9) x gives the value of the car after x years, how much will the car be worth in 8 years? A.$12, B.$216,000 C.$15, D.$14,348.91

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

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

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

10) The population in the town of Huntersville is presently at 38,300. The town grows at an annual rate of 1.2%. This information is modeled using the formula y = 38300(1.012) x ; What will be the population of the town in 4 years? A.60,266 B.153,200 C.155,038 D.40,172

12) 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 A.(0,0) B.(-6, 0) C.(0, -6) D.(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. A = x B = x C > x D = 2x

17) The value of a car decreases exponentially over each year. The initial price of the car is $24,500 and it decreases by a rate of 3.4% each year. How much will the car be worth in five years if the formula is modeled by y = 24500(.966) x A.$22, B.$21, C.$20, D.$118,335

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. A.P = 3A + 10 B.3A + P = 10 C.3A + 10P = P D.3P - 10 = A

Unit 2 Review

Question #1 Your family goes to a restaurant for dinner. There are 6 people in your family. Some order the chicken dinner for $14.80 and some order the steak dinner for $17. If the total bill was $91, how many people ordered each type of dinner? A) 1 ordered the chicken and 5 ordered the steak B) 2 ordered the chicken and 4 ordered the steak C) 5 ordered the chicken and 1 ordered the steak D) 3 ordered the chicken and 3 ordered the steak

Question #2 You sell tickets for admission to your school play and collect a total of $104. Admission prices are $6 for adults and $4 for children. You sold 21 tickets. How many adult tickets and how many children tickets did you sell? A) 10 adult tickets were sold and 11 child tickets were sold B) 11 adult tickets were sold and 10 child tickets were sold C) 9 adult tickets were sold and 12 child tickets were sold D) 13 adult tickets were sold and 8 child tickets were sold

Question #3 You bought the meat for Saturday’s cookout. A package of hot dogs cost $1.60 and a package of hamburger cost $5. You bought a total of 8 packages of meat and you spent $23. How many packages of hamburger meat did you buy? A) 4 packages of hamburger meat B) 5 packages of hamburger meat C) 6 packages of hamburger meat D) 3 packages of hamburger meat

Question #4 Tickets for the theater are $5 for the balcony and $10 for the orchestra. If 600 tickets were sold and the total receipts were $4750, how many tickets of each type were sold? A) 250 Balcony tickets were sold and 350 Orchestra tickets were sold B) 350 Balcony tickets were sold and 250 Orchestra tickets were sold C) 400 Balcony tickets were sold and 200 Orchestra tickets were sold D) 375 Balcony tickets were sold and 225 Orchestra tickets were sold

Question #5 Which of the following is a solution for: A) (-6,14) B) (28,4) C) (5,14) D) (14,5)

Question #6 A) (5,6) B) (0,11) C) (6,-4) D) (2,9)

Question #7 A) (-5,3) B) (3,-5) C) (6,-2) D) (9,1)

Question #8 A) (5,-3) B) No solution C) (0,-2) D) (-2,0)

Question #9

Question #10

Question #11 Find f(2): A) f(2) = 5 B) f(2) = -5 C) f(2) = 0 D) f(2) = -3

Question #12 A system of linear equations has been graphed in the diagram. Determine a reasonable solution for the system of equations A) (-5, 3) B) (5, -3) C) (5, 3) D) (-5, -3)

Question #13 AgeHeight Serena is doing a study on age and height. She collects the following ages and heights. Is her data a function? Why or why not? A) Yes, because for every x there is only one y B) Yes, because for every y there is only one x C) No, because for some x’s there are more than one y D) No, because for some y’s there are more than one x

Question #14 Regal Cinemas is trying to figure out how many tickets they sold at the midnight premiere of The Hobbit. Between student tickets and adult tickets, they sold 1200 tickets total. With student tickets costing $8.00 and adult tickets $12.00, they made $11,200. How many tickets of each kind did they sell? A) 700 student tickets & 500 adult tickets B) 800 student tickets & 400 adult tickets C) 500 student tickets & 700 adult tickets D) 400 student tickets & 800 adult tickets