Y-b y-b m --- --- x-0 x If we multiply both sides of the equation by x we get mx y - b and adding b to both sides gives mx b y So if we define slope as riserun then this is the equation that any point on the line has to fit. That gives you the rise. In this case you are given a run of 15 feet and a slope of 5 percent but youre asked to find the rise in inches.
Just like we saw before rise over run slope.
Change in y is just rise. Updated September 26 2019. Fill in the x coordinate for the first point. To Convert Slopes of fractional degrees to Rise-in-Run.