Slope-Intercept Form: Real-World Word Problems for 8th Grade

A car rental company charges a flat fee of $20 plus $0.15 per mile driven. Write the equation in slope-intercept form that represents the total cost (C) as a function of miles driven (m).

• C = 0.15m - 20

• C = 20 + 0.15m^2

• C = 0.15m + 20

• C = 20m + 0.15

If a bike shop sells bikes for $150 each and has a fixed cost of $300 for rent, write the equation in slope-intercept form for the total cost (C) in terms of the number of bikes sold (b).

• C = 150b - 300

• C = 150b + 150

• C = 300b + 150

• C = 150b + 300

A school is planning a fundraiser and expects to earn $500 from ticket sales. Each ticket costs $10. Write the equation in slope-intercept form for the total earnings (E) based on the number of tickets sold (t).

• E = 10t + 500

• E = 10t - 500

• E = 500t + 10

• E = 500 + 10t

A gardener is planting flowers in a straight line. If the first flower is planted at 2 feet and each subsequent flower is planted 1.5 feet apart, write the equation in slope-intercept form for the position (P) of the nth flower. What is the position of the 10th flower?

• 10 feet

• 15.5 feet

• 18 feet

• 12 feet

A phone company offers a plan that costs $30 per month plus $0.05 per text message. Write the equation in slope-intercept form for the total monthly cost (C) based on the number of text messages (t) sent. How much would it cost if 200 messages are sent?

• $50

• $40

• $30

• $60

A local gym charges a membership fee of $40 and an additional $5 per class attended. Write the equation in slope-intercept form for the total cost (C) based on the number of classes (c) attended. How much would it cost to attend 10 classes?

• $50

• $90

• $100

• $70

A delivery service charges a base fee of $25 plus $2 per mile. Write the equation in slope-intercept form for the total delivery cost (D) based on the number of miles (m) driven. If the delivery is 15 miles, what is the total cost?

• The total cost for 15 miles is $55.

• $65

• $45

• $75

A concert venue has a seating capacity of 500 and sells tickets for $50 each. Write the equation in slope-intercept form for the total revenue (R) based on the number of tickets sold (t). If 300 tickets are sold, what is the total revenue?

• 15000

• 25000

• 20000

• 12000

A bookstore sells notebooks for $3 each and has a fixed cost of $100 for supplies. Write the equation in slope-intercept form for the total cost (C) based on the number of notebooks (n) sold. How much would it cost to sell 50 notebooks?

• $250

• $200

• $300

• $150

A taxi service charges a flat rate of $10 plus $2 for every mile driven. Write the equation in slope-intercept form for the total fare (F) based on the number of miles (m) driven. If a passenger travels 8 miles, what is the total fare?

• $30

• $26

• $18

• $22