Is quadratic function a one-one function ?

Is cubic function a one-one function ?

Quadratic Functions

Is an identify function one-one function ?

STATEMENT-1: f(x)=x^(3) is a one-one function . and STATEMENT-2 : Any monotonic function is a one-one function .

All onto functions are one-one functions

Statement 1: f(x)=x^(3) is a one-one function. Statement 2: Any monotonic function is a one-one function.

What is meant by one-one function?

Statement-1 : If f(x) and g(x) are one-one functions then f(g(x)) and g(f(x)) is also a one-one function. and Statement-2 The composite function of two one-one function may or many not be one-one.

Statement-1 : If f(x) and g(x) are one-one functions then f(g(x)) and g(f(x)) is also a one-one function. and Statement-2 The composite function of two one-one function may or many not be one-one.

Injective function(one-one function) and Many- one function