Question

Find the equation of the line through the points (-2,1) and (5,-20)

Answer 1

y = -3x - 5

Explanation:

First find the slope: (-20 - 1) / (5 - (-2)) = -3

Then plug in one set of points into the equation y = mx + b.

1 = -3(-2) + b

1 = 6 + b

b = -5

So you can get the equation: y = -3x - 5