Question

which order pair of the following is not lies on the graph of the equation X-Y=3 ​

Answer 1

Step-by-step explanation:

Correct option is

B

(2,−2)

Two straight lines intersect at a point.

Solving the two given equations, we get 

x+y=0...(1)

3x−2y=10...(2)

Multiplying equation (1) by 2 and adding equations (1) and (2), 

2x+3x=10

∴5x=10 or x=2

Substituting x=2 in equation (1), we get y=−x=−2.