Let's analyze the data given in the table:
- Tickets sold (x): 4, 9, 8, 5, 7
- Money earned (y): 48, 108, 96, 60, 84
a. Every ticket sold is $12 earned. (You can calculate this by dividing the total money earned (y) by the number of tickets sold (x) for any of the pairs.)
For example, for the pair where 4 tickets were sold: \[ \text{Money earned} = $48 \quad \Rightarrow \quad \frac{48}{4} = 12 \text{ dollars per ticket} \]
b. Dollar per ticket is called a price per ticket or unit price.
c. This relationship is linear because 0 tickets sold is $0 dollars earned. (When there are no tickets sold, there is no money earned, which suggests a linear relationship through the origin.)