Unit 2 Test Review

Find f(-2) if f(x) = x+3

• -1

• 1

• 5

• -5

Find f(4) if f(x)=5+4x

• 21

• -11

• -31

• 25

To determine the pay, P(x), of your job at Kernersville Landscape, the company uses the function

P(x) = 8x + 5

where x is the number of hours you work. How much will you make if you work 11 hours?

• 93

• 88

• 83

• 63

Suppose that the function f(x) = 2x + 12 represents the cost to rent x movies a month from an internet movie club. Makayla now has $10. How many more dollars does Makayla need to rent 7 movies next month?

• 26

• 16

• 32

• 25

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

The profit from selling p number of popcorns is described by f(x)=5p+40. What is the difference in profit between selling 8 popcorns and 28 popcorns?

• 100

• 260

• 140

• 180

For Sierra's long-distance calling plan, the monthly cost C in dollars is given by the function C(t)=8+0.3t where t is the number of minutes talked. What is the total cost of talking 5 hours?

• 9.50

• 98

• 23

• 608

Bart noticed that there are multiple combinations of quarters and dimes that add up to $1.25.

Let x be the number of dimes

Let y be the number of quarters

What is the domain where y is a function of x and the total value of the coins is $1.25?

• {0,1,2,3,4,5,6,7,8,9,10,11,12,13}

• {1,2,3,4,5,6,7,8,9,10,11,12,13}

• {0,5,10}

• {5,10}

Bob noticed that there are multiple combinations of quarters and nickels that add up to $0.85.

Let x be the number of nickels

Let y be the number of quarters

What is the domain where y is a function of x and the total value of the coins is $0.85?

• {0,1,2,3,4,5,6,7,8,9,10,11,12,13}

• {1,2,3,4,5,6,7,8,9,10,11,12,13}

• {0,1,3,5,7,9,11,13}

• {2,7,10,12,17}

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2
• -1/2
• 2
• -2

Tags

CCSS.8.EE.B.5

Find the slope of the line that passes through
(10, 1) and (5, 2)

• 1/5
• -1/5
• 5
• -5

Tags

CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3