Question

PLEASE HELP I DONT HAVE MUCH TIME
If f(x) = 4^x, then f(-3) equals
1/64
64
-64
-12

Answer 1

Answer: Choice A.   1/64

Work Shown:

f(x) = 4^x

f(-3) = 4^(-3)

f(-3) = 1/(4^3) ... see note below

f(-3) = 1/64

Note: I'm using the rule that a^(-b) = 1/(a^b)

Answer 2

Answer: 1/64

Step-by-step explanation: it wants you to have 4^-3