Help me work the following problems.

1.Given the functionf(x)=8^x evaluate each of the following.

(a) f (-2/3) (b) f (-1) (c)f (0) (d) f(2) (e) f (5/3)

2.Given the function f (x) = (1/16)^x evaluate each of the following.

(a) f (-2) (b) f (-1/4) (c) f (0) (d) f (2) (e) Sketch each of the following.(1/4)

3.Sketch each of the following.

(a) f (x) = 5^x (b) g (x)= 5^x-4 (c) g (x) =5^x-3

4.Sketch the graph f (x) = (1/7)^x+4 -1

5.Sketch the graph of f (x) =e^x-4 -1