Answer:
see the procedure
Step-by-step explanation:
we know that
A discrete domain is a set of input values that consists of only certain numbers in an interval
A continuous domain is a set of input values that consists of all numbers in
an interval
In this problem we have
[tex]c=15+9h[/tex]
where
c is the amount in dollars
h is the number of hours
The total cost c depends of the number of hours h
so
c is the dependent variable, and h is the independent variable
You cannot buy part of an hour, only a certain number of hours. Because h represents the number of hours, it must be a whole number.
So, the domain is 0, 1, 2, 3, 4, 5, ... it is discrete