How do you know if y=3x+2 is a function?

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How do you know if y=3x+2 is a function?

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Answer 1 · 2017-07-04T02:59:32

It's not.

Explanation:

$y = 3 x + 2$ $y=3x+2$ is not a function. Rather, it is just a regular linear equation. However, $f (x) = 3 x + 2$ $f(x)=3x+2$ is a function, because it contains " $f (x)$ $f(x)$ ."

So, in general, if it contains " $y$ $y$ ," then you are safe in assuming that it is an equation. If it contains " $f (x)$ $f(x)$ ," then you are safe in assuming that it is a function.

I hope that helps!

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How do you know if y=3x+2 is a function?

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