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? 1/3 inch up per foot across 1/2 inch up per foot across 2 inches up per foot across 3 inches up per foot across
