Question

I am lost if anybody that understand that question can help me please

Answer 1

Explanation:

Slope is the difference in y values over the difference in x values

another way to look at it is
`(rise)/(run)`

If the slope is 0.28, that means that

`rise = 0.28(run)`

We're told that the section rises by 1 unit

`1 = 0.28(run)\\`

`run = (1)/(0.28) = 3.571428571 = 3.57`