Question

Brock is a plumber. He charges a flat rate of $40 to visit a house to inspect it's plumbing. He charges an additional $20 for every hour he spends inspecting or making repairs.

Which graph below correctly shows the price of using Brock's plumbing service vs time?

Answer 1

it would be graph W because the cost will increase, so that gets rid of Y... It has to start at 40 for the original cost, getting rid of Z and X

Answer 2

W is correct. the red line starts at 40 which is the initial fee

then it crosses 60 and 1.0 and 80 at 2.0 which is 20 dollars for 1 hour