Question

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)

$
per gallon

Answer 1

[AI-generated answer — Bot GPT 3.5]

To find the rate of change in the cost of gas as each gallon is pumped, we need to calculate the slope of the line passing through the given points.

Using the slope formula, we have:

slope = (y2 - y1) / (x2 - x1)

Given points: (4,15) and (8,30)

x1 = 4, y1 = 15
x2 = 8, y2 = 30

slope = (30 - 15) / (8 - 4)
= 15 / 4
= 3.75

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