The function $F : \mathbb{R} o \mathbb{R}$, $F(x) = x^2$ is:

Question

The function $F : \mathbb{R} 	o \mathbb{R}$, $F(x) = x^2$ is:

Accepted Answer

not one-one since $F(-1) = F(1)$

Answer

one-one

Answer

one-one only on integers

Answer

not a function

The function F:R→RF : \mathbb{R} \to \mathbb{R}F:R→R, F(x)=x2F(x) = x^2F(x)=x2 is: