Answer:
The equation for amount of money made by ticket sales is

Explanation:
We are given
An outdoor concert venue has an average of 22,650 attendees when the price per ticket is $32.50
so, at x=22650 , y=32.50
For every ticket price increase of $5 the number of attendees decreases by an average of 275
so, we get slope as


now, we can use slope intercept form of line

we can plug it

we can plug
x=22650 , y=32.50
and then we can find b


now, we can plug it back
and we get
So, the equation for amount of money made by ticket sales is
