Select all the ordered pairs that correspond to input-output pairs for the function y= -2x+3.

3 Answers: Choice B, Choice C, Choice D

In other words, only choice A is false.

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Explanation:

Each ordered pair is of the form (x, y) where x goes first.

For something like (2,7), we have x = 2 and y = 7 pair up.

Plug each into the equation and simplify both sides

y = -2x+3

7 = -2(2) + 3

7 = -4 + 3

7 = -1

We don't get the same thing on both sides, so (2,7) is not on this function curve. Instead, it should be (2, -1).

Therefore, we can rule out choice A

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Let's try choice B. We have x = -2 and y = 7 this time

y = -2x+3

7 = -2(-2) + 3

7 = 4 + 3

7 = 7

We get the same thing on both sides, so (-2,7) is on the line y = -2x+3

You should find that choices C and D are also on the line through similar steps.

The graph is shown below.

step-by-step explanation:

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step-by-step explanation: