Answer:
C. F(x)= 2^x + 1
Explanation:
Step 1: Substitute x into the various various functions.
Putting x into F(x)= 2^x + 1
When x= 1, 3 and 8 respectively.
when x =1
F(1)= 2¹ + 1 = 3
when x =3
F(3)= 2³ + 1 = = 8+1 =9
when x =8
F(8)= 2^8 + 1 = 256 +1 = 257
The correct equation is to substitute for x is F(x)= 2^x + 1