Question

Phil is going rollerblading. The cost to rent rollerblades for x hours at Roller Central is f(x) = 5x + 10. The cost to rent rollerblades at Skate World is f(x) = 6x + 5. If Phill skates for 4 hours, which location is the best to go to? What is the difference in price?​

Answer 1

Skate World is better because it is $1 less than Roller Central.

Explanation:

f(4) = 5(4) + 10

f(4) = 20 + 10

f(4) = 30

f(4) = 6(4) + 5

f(4) = 24 + 5

f(4) = 29

Roller Central is $30 and Skate World is $29.