Question

Given the points (0, -1) and (-9, 8) and on a line find its equation in the form y=mx+b

Answer 1

y= -x-1

Explanation:

Slope =

`(-1-8)/(0-(-9)) = (-9)/(9) = -1`

y-intercept: (0,-1)

Answer 2

Find the slope & then plug in

Explanation:

Find the slopes of the two points

Then plug in one of the coordinates into the equation along with the slope to get the value of B