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November 28, 2014

November 28, 2014

Posted by **Crissy** on Wednesday, June 24, 2009 at 10:39pm.

A. All real numbers except -5 and 5

B. All real numbers except -5,0 and 5

C. All real numbers except 0

D. All real numbers except 0 and 5

- Math -
**Reiny**, Wednesday, June 24, 2009 at 10:54pmthe only thing you have to worry about in your function is division by zero

When does that happen?

When x^2 - 25 = 0

or when x^2 = 25

or when x = ± 5

so your domain is any real number, except x = ±5

which would be a)

- Math -
**Crissy**, Wednesday, June 24, 2009 at 10:57pmThank you for the explanation! My teacher really never explained it like you did. Do you teach math?

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