Answer:
A Traffic Cop
Say the speed limit is 65, and local traffic laws require a $150 ticket for 10 mph above the limit, & $100 for less than 10 above.
The Function (f) is the Cop, who applies the above mentioned traffic rule.
The Input (x) is the speed of the vehicle he is following.
The Output (y) is the amount of the ticket issued.
Thus, the following formulas are true:
COP(66) = 100
or:
If you drive at 66 mph (x), the Cop(f) will issue a $100 ticket (y).
——
COP(75) = 150
or:
If you drive at 75 mph (x), the Cop(f) will issue a $150 ticket (y).
——
COP(50) = 0
or:
If you drive at 50 mph (x), the Cop(f) will issue a $0, or no ticket (y).
Hope this was clear.
