Posted by Crissy on Wednesday, June 24, 2009 at 10:39pm.
the 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)
Thank you for the explanation! My teacher really never explained it like you did. Do you teach math?
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