Find the slope ,rise and run

Find the slope of the line through the following pairs of points.
(-3,-1) (1,8)
and Indicate the rise and run between the two given points.
i got -7/-4

1. Subtract your x points from each other and your y points from each other
x points 1--3 = 4 and y points 8--1 = 9 rise over run gives you your gradient
9/4 and that's your slope

2.Just find the difference between your y points -3 and 1 that's 4 units difference on your x axis so 4 units of run.Than find the difference between your x points -1 and 8 that's 9 that's on your y axis so that's 9 unit's of rise

Slope of a line = m = rise / run = (y2 - y1) / (x2 - x1)
The other answer got it mixed up.

Substitute your coordinates: m = (8+1) / (1 + 3) = 9/4

rise = y2 - y1 = 8 - (-1) = 8 + 1 = 9
run = x2 - x1 = 1 - (-3) = 1 + 3 = 4
slope = rise/run = 9/4