A function with an input of 1 has an output of 3. Which of the following could not be the function equation? y = x + 2 y = 3x y = 2x + 1 y = x - 2

asked May 12, 2019 56.5k views

4 votes

A function with an input of 1 has an output of 3. Which of the following could not be the function equation?

y = x + 2
y = 3x
y = 2x + 1
y = x - 2

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4 votes

Substitute your x and y into the equations x=1 y=3
Y = x - 2
3 = 1 - 2. Is not a true statement and is your answer

Ktorn answered May 15, 2019

by Ktorn

8.3k points

2 votes

I think it is y = x - 2 .

Mootmoot answered May 16, 2019

8.1k points

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