Question

which ordered pair is a solution of the equation? y= -2x - 5choose 1 answerA: only (1,7) B: only (2,-7)C: both (1,7) and (2,-7)D: Neither

Answer 1

if we replace x by 1 we get

`y=-2\cdot1-5=-7`

so (1,7) is not a solution

if we replace x by 2. We get:

`y=-2\cdot2-5=-9`

so (2,-7) is not a solution.

So neither is the correct option