Question

Is (4,2) a solution to this system of equations?
y = -x + 6
y = 2x - 4

Answer 1

No

Explanation:

substitute the x- coordinate of the point into both equations and if the value obtained is equal to the y- coordinate then the point is a solution.

y = - 4 + 6 = 2 ← true

y = 2(4) - 4 = 8 - 4 = 4 ≠ 2 ← false

Thus the point is not a solution to the system