Question

Consider the following pair of equations:

−x − y = −5
y = x + 1

If the two equations are graphed, at what point do the lines representing the two equations intersect?

(−2, 3)
(3, −2)
(2, 3)
(3, 2)

Answer 1

Explanation:

2,3

Answer 2

-x-y=-5
-x+y=1

adding up the equations gives;
-2x=-4
x=2

replacing in the first equation;
-2-y=-5
-2+5=y
y=3
They would intersect at (2,3)