A graph of the cost of gas purchased depending on the number of gallons pumped has the points (4,15) and (8,30) . What is the rate of change in the cost of the gas as each gallon is pumped?(1 point)

Answer 1

To find the rate of change in the cost of gas per gallon, we can calculate the slope of the line passing through the two points.

Slope (m) = (y2-y1) / (x2-x1)
m = (30-15) / (8-4)
m = 15 / 4
m = 3.75

Therefore, the rate of change in the cost of gas as each gallon is pumped is $3.75.