Write the most specific name of the function.
1. f (x) = [[x]]
2. f(x) = x
3. f (x) = 1/x
4. f(x) = x2
5. f(x) = (x
6. f(x) = c
7. f(x) = | x | 8. f(x) = x3
9. f(x) = ax + b
10. Fill in the blank: The constant function and the identity function are two special types of ________ functions?