Which of the following is not a solution to the system of linear equations below?

x-2y=4

-2x+4y=-8

A. (2, - 1) B. (4, 0) C. (0, 2) D. (6, 1)

Plug in until you get a false answer.

A (2,-1)

(2) - 2 (-1) = 4

2+2=4

-2 (2) + 4 (-1) = - 8

-4-4=-8

B (4,0)

(4) - 2 (0) = 4

4-0=4

-2 (4) + 4 (0) = - 8

-8+0=-8

C (0,2)

(0) - 2 (2) = 4

0-4=4

-4=4

-2 (0) + 4 (2) = - 8

0+8=-8

8=-8

D (6,1)

(6) - 2 (1) = 4

6-2=4

-2 (6) + 4 (1) = - 8

-12+4=-8

The correct answer is C because (0,2) makes the equation untrue.