Question

What is the equation in point-slope form of the line passing through (2, 5) and (–1, 8)?

Answer 1

m=y2-y1/x2-x1

Answer 2

m=(8-5)/(-1-2)

Answer 3

m=3/-3
m=-1

Answer 4

Then, plug in that m into
y=mx+b
you can use either set of coordinates.

Answer 5

5=-1(2)+b

Answer 6

5=-2+b
7=b

Answer 7

final answer is
y=-1x+7
y=-x+7

Answer 8

understand?