Answer : 25 miles per gallon
According to the graph, the distance traveled by a car is plotted against the gallon of gasoline consumed
Distance = y
Gallon of gasoline = x
We want to calculate the distance the car traveled per gallon of gasoline consumed
Firstly, Pick a point of the graph
From the graph, we picked 4 points which are
x1 = 4, x2 = 8, y1 = 100 and y2 = 400
Point A = (4, 100) and point B = (8, 200)
