The function and the first value stated for x are confusing.
Doing some research, I found that the problem is to evaluate the function [tex]f(x)=4.7^x [/tex] for x = - 1 and x 2.
The solution is:
1) For x = - 1
[tex]f(-1)=4. 7^{-1} =4. (1/7)=4/7 [/tex]
2) For x = 2
[tex]f(2)=4.7^2=4(49)=196[/tex]
