Question

A function is given by a table of values, a graph, a formula, or a verbal description. Determine whether it is one-to-one.

Answer 1

step 1:

A function is said to be one to one if every input of the domain correspond to different outputs in the range.

Since  and input values in the domain correspond to the same output value in the range.

Hence, the function cannot be one to one.

Solution:

The function is not a one to one function.