Interpreting Linear Functions Word Problems

After how many cakes will Dorothy run out of eggs?

How do you know?

Tags

CCSS.HSF.IF.A.2

You plan to attend the county fair this weekend. Admission to the fair is $5 and the cost per ride is $0.50. Check off ALL of the following that are true.

• y = 0.5x + 5 will tell me how much I will spend on x rides

• After 3 rides I will spend $1.50

• If I go on NO rides I still have to pay $5 to get in.

• After 3 rides I will spend $6.50

• The slope is $5 per ride

You and your friends plan to attend the county fair this weekend.  Admission to the fair is $5 and the cost per ride is $0.50.  How many rides can you go on if you have $20?

• 20 rides

• 30 rides

• 40 rides

• 50 rides

Tags

CCSS.7.EE.B.4A

Ms. Brackemyer is collecting pencils.  The function p(x)=5x+12 tells us the total amount of pencils Ms. Brackemyer has after collecting for x number of days.  What is the meaning of p(8)=52?

• Ms. Brackemyer starts with 8 pencils and ends with 52.

• After 8 days, Ms. Brackemyer has 52 pencils.

• Ms. Brackemyer starts with 52 pencils and gets 4 more every day.

• Every day, Ms. Brackemyer gets 4 new pencils until she has 52.

Tags

CCSS.HSF.LE.B.5

A company is selling bubble gum.  The function g(x)=3x+4 tells the company how much to charge if someone buys x packages of bubble gum.  Find g(8) and tell what it means within the context of the problem.

• g(8)=8.  This means that after 8 packages of gum, the company makes $8.

• g(8)=42.  This means that 8 packages of gum costs $42.

• g(8)=28.  This means that 8 packages of gum costs $28.

• g(8)=24.  This means that 8 packages of gum costs $24.

Tags

CCSS.HSF.IF.A.2

The population of the town is given by the function y = 60,000 - 500x, where y is the number of inhabitants and x is the time in years. What is the population of the town after 9 years?

• 55,500

• 55,000

• 54,500

• D:54,000

The change in temperature is given by the function y = 68 - x, where y is the temperature in Fahrenheit degrees and x is the time in hours. What is the temperature after 2 hours?

• 70

• 69

• 67

• 66

Tags

CCSS.HSF.IF.A.2

The profit of a company is given by the function y = 100,000 - 2,000x, where y is the profit in dollars and x is the time in months. What is the profit of a company after 5 months?

• $98,000

• $90,000

• $89,000

• $80,000

Tags

CCSS.HSF.LE.B.5

The amusement park charges $20 to get in plus $1.50 per ride. Which linear equation below represents this relationship.

• y=1.5+20x

• y=1.5x + 20

• y = 20x + 1.5

• y= 21.5x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

If I join the gym for a start up fee of $40 and monthly fee of $10, what equation models this?

• y = 10x - 40

• y = 40x + 10

• y = 10x + 40

• y = 40x - 10

Tags

CCSS.6.EE.C.9