Help needed with this assignment

Which of the following is true for the relation f(x)=2x^2+1

Select the graph of the solution. click until the correct graph appears. |x| = 3

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.