Question

Evaluate the function y=3(1/2)^x for X=-3
A. -18
B. 24
C.9/8
D.-1/6

Answer 1

B

Explanation:

To evaluate the function, substitute x = -3. Since it is a negative exponent, it will create the reciprocal of the base.

`y = 3 ((1)/(2))^x\\\\y = 3 ((1)/(2))^(-3)\\\\y = 3 ((2)/(1))^3\\y = 3 (2^3)\\y = 3(8)\\y=24`