Question

Which of the following ordered pairs is a solution of `x + 1/2y = 1`: `(-2, 6), (2, -6), (-2, -6)`?

Answer 1

`(-2,6)`

Explanation:

A solution must obey the algebraic law.

`(-2,6)->-2+6/2=1` obeys
`(2,-6)->2+(-6)/2 ne 1` does not obey
`(-2,-6)->-2+(-6)/2 ne 1` does not obey