Which of the following functions has an inverse that is not a function?

Algebra
Tutor: None Selected Time limit: 1 Day

y = x²

and why? 

Jan 14th, 2015

y =x^2 has an inverse which is not a function

y =x2

x = ±√y

For the same x, there are two y's

Hence inverse is not a function

Jan 14th, 2015

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