If f(x) = Log(x), then f -1(x) =	Select.
A) 10 x
B) -10 -x
C) 1 / 10 x
D) x 10
E) NONE
Solution   y = Log(x) if and only if   x = 10y   Interchange x and y   y = 10x   Hence   f -1(x) = 10x   10 xnswer 10 x
<result>A</result>
If f(x) = Log(x), then f -1(x) =