Question

Find the slope of the line that passes through each pair of points

What is the slope of -2,1 and 1,-2

Answer 1

-1

Explanation:

The slope of the line can be found by

m = (y2-y1)/(x2-x1)

= (-2-1)/(1--2)

=-3 /(1+2)

=-3/3

-1