Question:
A movie theater holds 200 people. It sells tickets for $4.00. Write a function for the revenue, \(r\), from one showing, in terms of the number of tickets sold, \(n\). Also, give the domain and range of this function.
Solution:
\( r = 4n \)
Domain: \( \{n|n=0,1,2,...,200\} \)
Range: \( \{r(n)|r(n)=0,4,8,...,800\} \)
