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?

a. 1/3 inch up per foot across
b. 1/2 inch up per foot across
c. 2 inches up per foot across
d. 3 inches up per foot across

Answer 1

What is 18 minus 12?

Answer 2

6

Answer 3

What is 6 minus 4?

Answer 4

2

Answer 5

So we know for the 2 feet traveled across the ramp, the height went up 6 inches. Correct?

Answer 6

Yeah

Answer 7

So if in 2 feet, it went up 6 inches, how many inches would it go up in 1 foot?

Answer 8

3

Answer 9

Yes. So that would make the answer a,b,c or d if we know for 1 foot across it goes up 3 inches?

Answer 10

D ?

Answer 11

Correct!

Answer 12

Thank You

Answer 13

Welcome!