Answer:
B, C, D are functions
Step-by-step explanation:
Functions are those that do not share an x value. Look at A. x-values are used twice everywhere except the vertex. This is not a function, it is just a relation. B does not at any time share x-values, so this is a function. C is also a function, and so is D. F is a vertical line that shares the same x value throughout the whole line, so this is definitely not a function.
i hope i have been useful buddy.
good luck
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Answer:</u></h2><h2>

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Solution Steps:</u></h2>
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<h3>1.) Expand

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<em> - We do this to make the problem easier to simplify. When expanded you can easily figure out what you need to find to make it a simplified equation. </em>
<h3>2.) Calculate

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<em> - We do this because it's the only thing we can find, that would make this a simplified problem. </em>
So your answer is
.
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Answer:
Step-by-step explanation:
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