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Expression, domain, and range

Agents determine the cost for maintaining and hiring a hall by charging a flat fee of $55 for maintenance and the an hourly fee of $45 per hour. The maximum fee for the whole day's use is $595
a)Write the mathematical expression for the function used to generate the cost of hiring the hall.What would the domain and the range be assuming the agents allow parts of an hour to be considered?

Solution Preview

y = 55 + 45x
y <= 595
or 55 + 45x <= 595
or 45x <= 595-55 ...

Solution Summary

This shows how to write a mathematical expression for a situation and determine domain and range.