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The number of movie tickets bought and the total cost of the tickets can be represented using a relation.

The total cost depends on the number of tickets bought.

Let each ticket cost $\"\"$ can be represent this relation as a table.

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Number of tickets is the independent variable and should be graphed on the $\"\"$ -axis.

The total cost is the dependent variable and should be graphed on the $\"\"$ -axis.

Graph:

Plot the points.

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Observe the graph:

The relation as a set of ordered pairs where the number of tickets is the $\"\"$ -coordinate and total cost is $\"\"$ -coordinate.

The ordered pairs are $\"\"$ .

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The relation as a set of ordered pairs where the number of tickets is the $\"\"$ -coordinate and total cost is $\"\"$ -coordinate.

Three ways of representing a relation is

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Graph:

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The ordered pairs are $\"\"$ .