Question

What is the common solution for the equations y = 2x + 1 and y = x + 3?

Write your answer an ordered pair!

Answer 1

y^2 = 2x^2+x = x(2x+1) = xy => y^2 = xy => either y=0 or x = y

If y=0 then from y-2x=1, x=-1/2

If X=y then from y-2x = -x = 1 => x=y=-1

Explanation:

answer=1

Answer 2

(2,5)

Explanation:

This is the graph for both equations and the solution is where both lines cross each other.

Hope this helps