Given that a plumber charges $110 per hour. Where h represents the number of hours worked by plumber.
Then profit equatio for the plumber is given by P=110h
where P gives total earning of the plumber in h hours.
Now we need to find about what domain values are relevant on a graph that shows his earnings. Graph is not given but that is not the problem.
We know that number of hours can never be negative. It can be 0 or more.
Hence domain for the graph will be "all positive real numbers" which can also be written as:
h≥0.
Maximum hours is not given neither it is specified to use data for how many days so we will not put any upper bound for h.
