Question

A ramp with a constant incline is made to connect a driveway to a front door. At a point 4 feet from the driveway, the height of the ramp is 12 inches. At a point 6 feet from the driveway, the height of the ramp is 18 inches. What is the rate of change of the ramp’s incline?

Answer 1

3 inches up per foot across

Explanation:

Answer 2

Incline (slope) is defined rise/run (length)
Rise = 12" = 1'
Run (length) = 4'
Incline = 1'/4'=1/4 (or 0.25)