A function f is defined by the following table below.for which of the following values of x does f(f(x))=6 a)0 b)2 c)3 d)5 e)6

Question

x      f(x)

0        4

1        5

2        3

3        6

4        2

5        1

6        0

Answer 1

c) x= 3 when f(x) = 6

look at the middle table pair