Question

A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C, after h hours of service. What will be the total cost for 8 hours of work? 10 hours of work?

Answer 1

$y = 50x+ 80$

$y = 530$
$y = 50(10) + 80$