Which equation has (2, -1) as a solution A. y = 2x - 1 B. y = x + 3 C. y = x - 3 D. y = - 2x + 1

Question

asked Jun 21, 2020 48.6k views

1 Answer

Chris Walsh · Answer 1 · 2020-06-27T08:03:48+0000

Answer:

C.
y=x-3

Explanation:

To find the answer to the problem, you plug in the values for
and
.

Let's plug them in and see which equation is true.

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$-1=2(2)-1\\-1=4-1\\-1=3$

Not true.

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$-1=2+3\\-1=5$

Not true.

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$-1=2-3\\-1=-1$

True.

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$-1=-2(2)-1\\-1=-4-1\\-1=-5$

Not true.

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