Function Word Problems

A babysitter’s earnings e are a function of the number of hours n worked at a rate of $7.25 per hour.

• e = 7.25-n

• e = 7.25n

• e = $\frac{n}{7.25}$

Tags

CCSS.HSF-BF.A.1A

For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitting. How much money will she make if she baby-sits 5 hours?

• H = 3c + 5

• C = 5h + 3

• 20

• 28

Tags

CCSS.HSF-BF.A.1A

A water tank already contains 55 gallons of water when Baxter begins to fill it. Water flows into the tank at a rate of 8 gallons per minute. Write a linear equation to model this situation. Find the volume of water in the tank 25 minutes after Baxter begins filling the tank.

• 255

• y = 8x + 55

• 1383

• y = 55x + 8

A taxicab charges $4.25 for a ride and $1.50 per mile. Write a rule for describing the total rate r as a function of the total miles m. What is the taxi rate for 12 miles?

• 22.25

• r = 4.25m + 1.50

• 52.50

• r = 1.50m + 4.25

Tags

CCSS.HSF-BF.A.1A

A plumber charges $50 to make a house call. He also charges $25 per hour for labor.

How much would it cost for 2.5 hours of labor?

• $100

• 4.50

• $112.50

• $65.00

• $123.45

Tags

CCSS.8.EE.C.7B

Carson owes the bank money. To repay his debt, he paid $200 back to the bank each month interest free. After 9 months, his remaining debt was $18,000.
What was the original amount of Carson's Debt?

• $18.200
• $18,000
• $19,800
• $16,200

Tags

CCSS.7.EE.B.4A

• Opt1
• Opt2
• Opt 3
• Opt 4

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

Find the missing OUTPUT value.

• -2
• 3
• 9
• -7

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• The output is a + 6. 
• The output is a – 6. 
• The output is a ÷ 4. 
• Not here 

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What type of function is present? y=-2x+1

• Linear Inequality
• Linear Equation
• Exponential 
• Absolute Value

Tags

CCSS.8.F.A.3