Question

A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form (y = mx + b) for the cost, C, after h hours of service.

Answer 1

C = 50H + 25

Explanation:

The starting fee is $25, which means that you must add $25 no matter what.

The plumber is charging $50 dollars per hour, so it should be 50H