Question

Which set of coordinates satisfies the system of equations y = x − 3 and y = -2x + 1?

Answer 1

C

Explanation:

The first equation has a y-intercept of -3. Only one line does.

The second equation has a y-intercept of +1. Only one line does.

The point of intersection of those two lines is the point labeled C. That has coordinates that satisfy both equations. (The point is on both lines.)