Kan Chit L. answered • 03/19/18

Tutor

New to Wyzant
Researcher working in University of Michigan

First, you have to know that the slope (m) of the line form by two points A(x1,y1) and B(x2,y2) is (y2-y1)/(x2-x1).

So we get the slope of the line is (4-7)/(2-3)=3, so the line equation becomes y=3x+b.

Substituting one of the points into the equation, for instance, the first point(3,7): 7=3*3+b, we can get that b=-2

The equation of the line is y=3x-2