SOLUTION: what value (if any)must be excluded from the domain? x^2-1 ------ x a)x=4 b)x=1 c)x=0 d)x=-1 Are there sites that will help me solve these types of problems?

Question 555148: what value (if any)must be excluded from the domain?
x^2-1
------
x

a)x=4 b)x=1 c)x=0 d)x=-1

Are there sites that will help me solve these types of problems?
Thanks
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
what value (if any) must be excluded from the domain?
x^2-1
------
x
a)x=4 b)x=1 c)x=0 d)x=-1
=============================
The denominator cannot be zero.
Ans: x = 0
========
Are there sites that will help me solve these types of problems?
Use Google to search for "finding domain and range of a function".
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Cheers,
Stan H.
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