Question

What is the equation of the line that passes through the points (-2, 3) and (2, 7)?

x - y = -1
x - y = -2
x - y = - 5
x - y = - 6

Answer 1

x -y = -5

To see that substitute the points.

First, point (-2,3)

-2 - 3 = -5

Now second point (2,7)

2 - 7 = -5

As you have seen, both points belong to the equation x - y = -5