write a function

The almond extract a remaining in an 8-oz bottle decreases by 1/6 oz for each batch b of waffle cookies made. Make a function rule.

• a = 8 - ⅙ b

• a = ⅙ b

• a = 6b

• b = 6a

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.1

CCSS.8.F.B.4

A car rental agency charges $29 per day to rent a car and $13.95 per day for GPS. Customers are also charged $40 for a full tank of gas. Write a rule for the total cost t of renting a car for d days.

• t(d) = 40d + 42.95

• d = 40t + 42.95

• t(d) = 40 + 42.95d

• d(t) = 82.95t

Tags

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

If you rented that car for 9 days, what would your total rental cost be?

• $386.55

• $301.00

• $320.55

• $426.55

Tags

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Is this table a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

CCSS.8.F.A.2

You plan to go snowboarding. The resort charges $15 per hour in addition to $25 to rent a board. Write an equation that represents the cost to go snowboarding for the day.

• y=15x-25

• 15x+25y=100

• 25x+y=15

• y=15x+25

Conner has $25,000 in his bank account. Every month he spends $1,500. He does not add money to the account.
 Write a linear model that shows how much money will be in the account after x months. 

• y=25000x-1500
• y=25000+1500
• y=1500x+25000
• y=-1500x+25000

Tags

CCSS.8.F.A.3

CCSS.8.F.B.4