Question

For the function on the right, determine whether the function is one-to-one.Is the function one-to-one?

Answer 1

Remember that

A function is one-to-one if every element of the range corresponds to exactly one element of the domain

so

Verify

In this problem

we have that

every element of the range corresponds to exactly one element of the domain

therefore

The function is one to one

answer is YES