Question 1

Which of the following graphs represents a function that is **one-to-one**?

Accepted Answer

The second graph (top row, middle image)

Question 2

For the first graph (top row, leftmost image), which of the following statements is true?

Accepted Answer

The graph fails both the vertical and horizontal line tests.

Question 3

Which of the following best describes the bottom graph in the second image (top row, middle image)?

Accepted Answer

It is the graph of $$y = |x|.$$

Question 4

Which of the following graphs does **not** represent a function?

Accepted Answer

The third graph (top row, rightmost image)

Question 5

For the top graph in the third image (top row, rightmost image), which equation best describes the graph?

Accepted Answer

$$y = x^2$

Question 6

Which of the following statements is true about the bottom graph in the third image (top row, rightmost image)?

Accepted Answer

It fails the vertical line test.

Question 7

Which graph could represent the function $$f(x) = x^3$?

Accepted Answer

The top graph in the second image (top row, middle image)

Question 8

Which of the following graphs is symmetric with respect to the y-axis?

Accepted Answer

Both A and C

Question 9

Which of the following graphs represents a function whose inverse is also a function?

Accepted Answer

The top graph in the second image (top row, middle image)

Question 10

Which of the following best describes the bottom graph in the first image (top row, leftmost image)?

Accepted Answer

It is the graph of $$y = x^2$.

Determining if a Function is One-to-One from Its Graph

Study Guide - Practice Questions