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g100num [7]
3 years ago
6

Which equation describes a relationship such that x = 0 must be excluded from the domain?

Mathematics
2 answers:
zepelin [54]3 years ago
7 0

Answer:

y = 2/x

Step-by-step explanation:

You cannot divide by zero because you will get an undefined value, and this will create a hole in the graph.

gregori [183]3 years ago
3 0

Answer:

y = \frac{2}{x\\}

Explanation:

Let's check all the answers to be sure we are correct!

Choice A)  y = 2x

The domain for y = 2x is represented by the interval (-∞,∞). This shows that the domain is all real numbers.

Choice B)  y = 2 + x

The domain is represented by the interval (-∞,∞). This shows that the domain is all real numbers.

Choice C)  y=\frac{2}{x}

We know that the denominator can not be equal to zero. You must remember this! So, now we find that the domain is represented by the interval,

                                              (-∞,0) ∩ (0,∞)

This shows that the domain is all real numbers except the number zero.

Choice D) y = x^{2}

The domain is represented by the interval (-∞,∞). This shows that the domain contains all real numbers.

Therefore, our answer is choice C!

Nice job everyone!

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