Question

If f( n ) = n 2 - n , then f(-4) is _____.

A. -12
B. -20
C. 20
D. 12

Answer 1

Answer:

C. 20

Step-by-step explanation:

f(-4) = (-4)^2 - (-4)

= 16 + 4

= 20

Answer 2

If f(n) = n 2 -n , then f(-4) is 20.