Find the equation (in slope-intercept form) of the line passing through the points with the given coordinates. (-3,0), (-4,4)

Answer 1

Instead of

Answer = -4x -12,

this should be:

The answer is y = -4x -12.

Also, if you have two points, you can use both points in the equation b = y - mx. If you obtain the same value for b, that validates your answer, and it is very unlikely you have made a mistake, either in the computation of m or b.

Answer 2

Video Attached!

Givens: two points on a line (-3,0), (-4,4)

Our goal: slope-intercept form of the line, which is y=mx+b where slope is m, and y-intercept is b

Equations we will use: m = (y2-y1)/(x2-x1) and y-y1 = m(x=x1)

1. find slope (m)
2. plug one point and m into y-y1 = m(x=x1)*

Answer: y= -4x -12

*NOTE: if you don't wait to use the point-slope equation, you can also use b = Y-mX where you plug in one of the points and slope (m)