Question

f(x)=x³ is onto or not​

Answer 1

Answer:

not

Step-by-step explanation:

Answer 2

Step-by-step explanation:

The Definition of Onto

A function f with domain X and target set Y is onto if every point of Y is in the image of f. In other words, given any y in Y there is at least one x in X such that y = f(x).

Example.

The function f(x)=x2 from R to R is not one-to-one because there is no real number x such that f(x) = -1.

The function f(x)=x3, on the other hand, IS onto because every real number y has a cube root x such that y = x3