Which equation has (2, −1) as a solution?
A. y = 2x − 1
B. y = x + 3
C. y = x – 3
D. y = −2x + 1
3 answers
A. y = 2x − 1
sorry -- 2*2-1 = 3, not -1
Try C
Try C
If we substitute x=2 and y=-1 in the equation y=x-3, we get:
-1 = 2 - 3
-1 = -1
Therefore, (2,-1) is a solution of the equation y=x-3.
-1 = 2 - 3
-1 = -1
Therefore, (2,-1) is a solution of the equation y=x-3.