Question

a plumber charges $15 for a service call plus $20 per hour of service. Write an equation in slope-intercept form for the cost, y, after x hours of service. What will be the total cost for 8 hours of work?

Answer 1

y = 20x + 15

The total cost for 8 hours of work will be $175

Explanation:

To find the total cost for 8 hours of work, substitute the x in the equation with 8, and solve. 20 times 8 is 160. 160 + 15 is 175.

Answer 2

C= 25$ + 50$ * h

8 hours 425$

10 hours 525$

Explanation: