The Official SAT Question of the Day™

Read the following SAT test question, then click on a button to select your answer.

The function y = ƒ(x), defined for –1.5 x 1.5, is graphed above. For how many different values of x is ƒ(x) = 0.2?

A None
B One
C Two
D Three
E Four

Answer is D

Here's Why:

ƒ(x) = 0.2 when the point (x, 0.2) is on the graph of ƒ. Drawing the line y = 0.2, as in the graph below, shows that the y-value is equal to 0.2 for four values of x between –1.5 and 1.5.

Difficulty: Medium
Question Type: Standard Multiple Choice

(Mathematics)