Answer:
Revenue: (30 + t)( 400 - 50t)
Attendance: 400 - 50t
a). $11 decrease in price maximises the revenue
b). $19 per ticket
c). $18,050
Step-by-step explanation:
We know that when we decrease the price by $1, the attendance increases by 50. Therefore, if we decrease our price n times, then the attendence becomes
![400+50n](https://img.qammunity.org/2023/formulas/mathematics/college/pf1vw31cxlmywxnwqfgyapqt9dmj3okvpm.png)
The price of the ticket then will have become
![30-n](https://img.qammunity.org/2023/formulas/mathematics/college/me1pipwqi74et4930xph54kar1t37f11rt.png)
The revenue then will be
Revenue = attendence x price per ticket
![R=(400+50n)(30-n)](https://img.qammunity.org/2023/formulas/mathematics/college/p2snfmeuul0uusyd9pywjhrrus061pqala.png)
Now, the expression on the right-hand side is a parabola. The plot is given below.
As can be seen, the vertex of the parabola is (11, 18050).
a. The vertex tells us that if we decrease our ticket price by $11, then the revenue will be maximum.
b. The price per ticket that maximises the revenue is $30 - $11 = $19
c. As can be seen from the graph, the maximum revenue is $18050.
Hence, to summerise
a). $11 decrease in price maximises the revenue
b). $19 per ticket
c). $18,050