Brock is a plumber. he charges a flat rate of $40 to visit a house to inspect its plumbing. he charges an additional $20 for every hour he spends inspecting or making repairs which graph below correctly shows the price of using brocks plumbing service vs time?
a) graph w
b) graph x
c) graph y
d) graph z

Based on the given data we could get an equation that will tell the statement as, Income (i) = 20h + 40. That was express that way because it says that there is already a 40 dollars charge for inspection, so it is a constant variable. Then it will be now added to the product of number of hours times 20 dollars per hour.
So this represents Graph W which is letter A.