Which relation represents a function?

Mathematics

1 answer:

Airida [17]3 years ago

4 0

<h3>Answer: Choice C</h3><h3>{ (-2,2), (0,2), (7,2), (11,2) }</h3>

Here we don't have any repeated x values.

In choice A, x = 2 repeats. In other words, x = 2 leads to multiple y outputs. So this is not a function. Choices B and D are similar stories. A function is only possible if every x leads to exactly one y value only. The graph must pass the vertical line test.

Side note: the y values can repeat, but the function won't be one-to-one.

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3 years ago

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bekas [8.4K]

Answer:
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Step-by-step explanation:
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ax^2 + bx + c
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2 years ago

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Oduvanchick [21]

Answer:

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Step-by-step explanation:

You set them equal to each other.

You get x=4

Sub in 4 for one of the equations

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