$\"\"$

\

The movie theater has been charging $\"\"$ per person and selling about $\"\"$ tickets.

\

$\"\"$

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Lower price by $\"\"$ , tickets increase by $\"\"$ .

\

$\"\"$

\

Find the equation of this linear demand function.

\

Point-slope form of a line equation $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

Find the number of tickets sold at $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Find the consumer surplus for the fallowing demand curve at the sales level $\"\"$ .

\

The consumer surplus region is the triangle shape

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

The integral is $\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

The consumer surplus when the tickets are priced at $\"\"$ is $\"\"$ .

\

$\"\"$

\

Demand function is $\"\"$ .

\

The consumer surplus when the tickets are priced at $\"\"$ is $\"\"$ .