The Official SAT Question of the Day™

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


If ƒ(x) = x + ax, and a = 7/2, what is ƒ(3/2) ?

A 1/3
B 3/2
C 7/2
D 21/4
E 27/4

Answer is E

Here's Why:

If ƒ(x) = x + ax, and a = 7/2 , then ƒ(x) = x +7/2 x =9/2 x. Therefore, ƒ (3/2)= (9/2)(3/2) = 27/4 .


Difficulty: Medium
Question Type: Standard Multiple Choice

(Mathematics)