GRE Question of the Day (November 5)

Math

f(x)=x2+1f(x)=x2+1. For which values of x does f(x)=f(1x)f(x)=f(1x)?

Indicate all such values:

A. -2

B. -1

C. −12−12

D. 1/2

E. 1

F. 2

Question Discussion & Explanation

Correct Answer - B and E - (click and drag your mouse to see the answer)