Asked by Anonymous

State the domain and range for each function.

y=2x^2/(x^2-1)

domain: ?

range: ?

Answers

Answered by bobpursley
domain x canot be +-1

range: all positive real numbers, including zero.
Answered by Anonymous
thank you.
Answered by Steve
range is all positive >2, as well as all negative

On the interval (-1,1) the numerator is positive and the denominator is negative.
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