function rule
A mapping. It need not be a function.
There need not be any relationship.
A function.
cost or input
Relation
A mapping. It need not be a function.
There need not be any relationship.
What is the relation ship between total fixed cost and output?
A function.
cost or input
is unknown
Relation
Design
output and exports
The output of the expression 11 5 will be 6. This is because 11 - 5 = 6.
Function
Returns to scale refer to a special relationship between output and input. During production, this relationship refers to the connection between the changes that occur with the output and those that began in the input.