Which of the following best describes the graph shown below

Which of the following best describes the graph shown below? This is the graph of a one-to-one function. This is not the graph of a function. This is the graph of a function, but it is not one-to-one. This is the graph of a linear function.

Solution

solution-

this is the graph of one to one function .

Because for every single point of domain ,there is single ouput