Use the function rule f(x)= x * (-1)^x. Find the output of f(2)

Question

A. 4
B. 3
C. -2
D. 2

Answer 1

If your question means:

x • ( - 1 )ˣ

Then replace x with 2

2 • ( - 1 )²

Since ( - 1 )² = 1

f(2) = 2 • ( - 1 )² = 2 • 1 = 2