The table shows the number of tickets sold and the profit made at a fundraiser.

Tickets Sold
Profit
2
$18
4
$36
6
$54
8
$72

Which describes the relationship between the number of tickets sold and the profit?
Each ticket sold yields $8 of profit.
Each ticket sold yields $9 of profit.
Each ticket sold yields $16 of profit.
Each ticket sold yields $18 of profit.