Linear Functions: Graphing & Solving Real-World Problems

A car rental company charges a flat fee of $50 plus $20 for each day the car is rented. Write the equation that represents the total cost (C) as a function of the number of days (d) rented. What is the cost if the car is rented for 3 days?

• $90

• $130

• $150

• The cost if the car is rented for 3 days is $110.

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

• $50

• $100

• $70

• $80

A school is selling tickets for a play. The tickets cost $8 each, and there is a one-time fee of $50 for the venue. Write the equation for the total revenue (R) based on the number of tickets (t) sold. How much revenue is generated if 20 tickets are sold?

• 150

• 210

• 200

• 180

A delivery service charges a base fee of $15 plus $2 for each mile driven. Write the equation for the total charge (C) based on the number of miles (m) driven. How much would a delivery cost if it is 10 miles?

• $30

• $35

• $40

• $25

A phone company offers a plan that costs $25 per month plus $0.10 for each text message sent. Write the equation for the total cost (C) based on the number of text messages (t) sent. What is the total cost if 50 text messages are sent?

• 30

• 50

• 40

• 35

A farmer sells apples for $2 per pound and has a fixed cost of $100 for equipment. Write the equation for the total revenue (R) based on the number of pounds of apples (p) sold. How much revenue does the farmer make if he sells 30 pounds?

• $60

• $30

• $90

• $100

A taxi company charges a flat rate of $10 plus $1.50 for each mile driven. Write the equation for the total fare (F) based on the number of miles (m) driven. What is the fare for a 5-mile trip?

• $17.50

• $12.50

• $20.00

• $15.00

A concert venue has a fixed cost of $2000 and sells tickets for $50 each. Write the equation for the total revenue (R) based on the number of tickets (t) sold. How many tickets need to be sold to cover the fixed cost?

• 50

• 30

• 40

• 60

A subscription service charges $15 per month plus a one-time setup fee of $25. Write the equation for the total cost (C) based on the number of months (m) subscribed. What is the total cost for a 6-month subscription?

• $100

• $130

• $90

• $115

A bookstore sells novels for $12 each and has a monthly rent of $300. Write the equation for the total revenue (R) based on the number of novels (n) sold. How many novels must be sold to cover the rent?

• 30

• 15

• 25

• 20