Unit 2 Review - Linear Functions

A volleyball camp charges 150 per camper for 10 campers. When a team brings 15 campers, the rate is reduced to 125 per camper. What is the rate of change in cost per camper?

• The rate of change is -$5 per camper.

• The rate of change is $25 per camper.

• The rate of change is -$10 per camper.

• The rate of change is $5 per camper.

Tags

CCSS.HSF-LE.A.1B

Write an equation in slope intercept form of the line that passes through the point (-5, -1) with slope -3.

• y = -3x - 16

• y = 3x - 16

• y = -3x + 16

• y = 3x + 16

A cleaning service charges a flat fee and an hourly rate for cleaning customer’s houses. The table below shows amounts charged by the cleaning service and the number of hours cleaned. Create an equation that gives the amount charged, y, according to the number of hours cleaned, x.

• y = 22x + 16

• y = 30x + 10

• y = 20x + 20

• y = 25x + 5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

A cleaning service charges a flat fee and an hourly rate for cleaning customer’s houses. The table below shows amounts charged by the cleaning service and the number of hours cleaned. What is the flat fee that the company charges?

• $16

• $20

• $10

• $25

Tags

CCSS.HSF.LE.B.5

A cleaning service charges a flat fee and an hourly rate for cleaning customer’s houses. The table below shows amounts charged by the cleaning service and the number of hours cleaned. What is the hourly rate?

• $22 per hour

• $30 per hour

• $15 per hour

• $10 per hour

Tags

CCSS.HSF-LE.A.1B

A cleaning service charges a flat fee and an hourly rate for cleaning customer’s houses. The table below shows amounts charged by the cleaning service and the number of hours cleaned. How much would the company charge for a 10-hour cleaning?

• $236

• $210

• $250

• $220

Tags

CCSS.HSF-LE.A.1B

Jimmy has a checking account at a local credit union. He pays a service charge of 1.00 per month. In addition, he pays 0.30 per check he writes. Write a rule that gives Jimmy’s monthly charge y in terms of the number of checks x he writes during a month.

• y = 1 + 0.3x

• y = 0.3 + 1x

• y = 1x + 0.3x

• y = 1 + 0.3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

A plane loses altitude (height) at the rate of 5 meters per second. It begins with an altitude of 8500 meters. The plane’s altitude (height) is a function of the number of seconds that pass. Write an equation modeling this situation.

• h = 8500 - 5t

• h = 8500 + 5t

• h = 5t - 8500

• h = 8500t - 5

Tags

CCSS.HSF-BF.A.1A

A plane loses altitude (height) at the rate of 5 meters per second. It begins with an altitude of 8500 meters. The plane’s altitude (height) is a function of the number of seconds that pass. Use your equation to find out when the plane lands (altitude is 0).

• The plane lands after 1700 seconds.

• The plane lands after 1200 seconds.

• The plane lands after 2000 seconds.

• The plane lands after 1000 seconds.

To order tickets online for a hockey game, there is a processing fee plus the cost per ticket. The cost for 5 tickets is 174.45 and the cost for 8 tickets is 271.95. How much is the processing fee?

• $33.60

• $25.00

• $40.00

• $11.95

Tags

CCSS.8.EE.C.8C