Identifying and Graphing Linear Functions in Real Life

A car rental company charges a flat fee of $50 plus $0.20 per mile driven. Write a linear function to represent the total cost (C) in terms of miles driven (m). What is the cost for driving 100 miles?

• $70

• $100

• $90

• $50

A gym charges a monthly membership fee of $30 plus $10 for each class attended. Write the linear equation for the total cost (C) based on the number of classes (c) attended. How much would it cost to attend 5 classes?

• $80

• $50

• $90

• $70

A phone plan costs $25 per month plus $0.10 for each text message sent. Create a linear function to represent the total cost (C) based on the number of text messages (t) sent. What is the total cost if 200 messages are sent?

• $50

• $30

• $45

• $60

A store sells notebooks for $2 each and pens for $1 each. If a student buys x notebooks and y pens, write a linear equation for the total cost (C). How much would it cost to buy 3 notebooks and 4 pens?

• 10

• 5

• 12

• 8

A taxi charges a base fare of $3 plus $2 for each mile driven. Write a linear function to represent the total fare (F) in terms of miles driven (m). What would be the fare for a 10-mile trip?

• $30

• $15

• $23

• $18

A gardener charges $15 for a visit plus $5 for each hour worked. Write a linear equation for the total cost (C) based on hours worked (h). How much would it cost for 4 hours of work?

• $50

• $25

• $35

• $45

A school is selling tickets for a play at $8 each. Write a linear function to represent the total revenue (R) from selling x tickets. How much revenue is generated from selling 50 tickets?

• 800

• 600

• 200

• 400

A delivery service charges a flat fee of $10 plus $1.50 per package delivered. Write a linear equation for the total cost (C) based on the number of packages (p) delivered. What is the cost for delivering 20 packages?

• 40

• $25

• $50

• $30

A subscription service charges $12 per month. If a user subscribes for m months, write a linear function for the total cost (C). What is the total cost for a 6-month subscription?

• $84

• $60

• $72

• $48

A local bakery sells cupcakes for $3 each and cookies for $2 each. If a customer buys x cupcakes and y cookies, write a linear equation for the total cost (C). How much would it cost to buy 4 cupcakes and 6 cookies?

• $24

• $18

• $12

• $30