Louis plans to buy a new washing machine. The washing machine costs $560 and has an estimated annual operating cost of $48. Which rational function models the average annual cost in dollars of owning the washing machine for x years?

a.) f (x) = 560+48/x

b) f (x) 560x+48x/x

c.) f (x) = 560x=48/x

d) f (x) 560+48x/x

Question

Hunter Adams

19 July, 09:01

+4

Answers (2)

Know the Answer?

Angelique Brooks · Answer 1

a.) f (x) = 560+48/x

$560 for the original costs of the machine + $48 per year for operating costs

Delaney Harmon · Answer 2

A: 560 is a definite cost and 48 could change from time to time so x goes there.