It looks like it goes through (0,-3) and (1,2), so the gradient is (change in y)/(change in x) ->
(-3-2)/(0-1) = 5
So y=5x+b
Then as we know it passes the y axis at (0,-3) so b= -3
So we have y=5x-3
The answer to your question is 72 inches.
The answer is A.
The 0's of the function are -2, 2, and 3.
The graph starts from the bottom left and it keeps going to the top right.