# The function #c=45n+5# can be used to determine the cost, c, for a person to purchase n tickets to a concert. Each person can purchase at most 6 tickets. What is an appropriate domain for the function?

##### 1 Answer

#### Explanation:

Basically the 'domain' is the set of input values. In other wards it is all the permitted independent variable values.

Suppose you had the equation:

Then for this equation the domain is all the values that may be assigned to the independent variable

Domain: The values you may chose to assign.

Range: The related answers.

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For the given equation:

We are told that no more than 6 tickets may be purchased by any one person. So

So the domain is written as:

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~~~~~~~~~~~~~~~ Memory aid ~~~~~~~~~~~~~~~~~~~~~~~~~~~

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In the alphabet d for domain comes before r for range

You have to 'plug' in a value before you get your answer

So d first

and r next