Question

Solve the following system of equations by the substitution method.

x - y = 0
x - y - 2 = 0

What is the solution set?

{(1, -1)}
{(-1, 1)}
Ø

Answer 1

@Mehek14

Answer 2

Plug in (-1,1) into both equations. Does that work as a solution?

Answer 3

Plug in (1,-1) into both equations. Does that work as a solution?

Answer 4

If those two points don't work, then your answer is C. Null.

That symbol is null, which means no solution.

Answer 5

thank you:)