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BlackZzzverrR [31]
3 years ago
14

PLS HELP I DONT UNDERSTAND :( WILL MARK BRAINLIEST+

Mathematics
2 answers:
mojhsa [17]3 years ago
4 0

Answer:

C

Step-by-step explanation:

functions can only have domains that are different numbers, (first number) the rest repeat the domain and that makes it not a function

galben [10]3 years ago
3 0

Answer:

C

Step-by-step explanation:

A set of pairs is a function if and only if there is only <em>one</em> y-value for each x-coordinate. In other words, the x-coordinate <em>cannot </em>repeat. If it does, then it must equal the same thing.

Let's go through each of the choices.

For A, -5 repeats twice. It simultaneously equals both 4 and -2. This cannot be true if this is a function, so A is not correct.

For B, 2 repeats twice. It equals both 6 and -6. So, this is also not a function.

For C, no digits are repeating. Thus, this is a function.

To make sure, in D ,-3 is repeating. It is both -4 and 8, so this is not a function.

So, our answer is C.

And we're done!

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