Answer:
a) 
if x = input
then the function of the input is to "multiply the input by 6"
b) 
the function of the input = two multiply by the input minus six
c) 
the function of the input = the cube of the input minus five
Step-by-step explanation:
Given that:
a) 
b) 
c) 
The objective is to state in words the rule defined by each of the functions
We are being given the first question as a sample that:
a) 
if x = input
then the function of the input is to "multiply the input by 6"
b) 
the function of the input = two multiply by the input minus six
c) 
the function of the input = the cube of the input minus five