Answer:
y=9x
Explanation:
We are given that x is number of adults entering the theater, and that y is the total cost. When we look at the graph, one person is at 9 dollar, 2 people are at 18 dollars, so on and so forth. If we take 2 ordered pairs, in this case we can use (1,9) and (2,18) we do the slope formula. We will do (18-9)/(2-1)
then we get 9/1 meaning it is $9/1 ticket.
our equation is then going to be y=9x