Algebra-1

1. First, let's understand the relationship between the variables:

The situation describes that as Ethan buys more tickets (the number of tickets being the variable ), the total cost of the tickets (the variable ) increases.

 

This means that the total cost  depends on the number of tickets  that Ethan buys.

 

2. Then, recall the definitions of independent and dependent variables:

The independent variable is the one that can be freely changed or controlled. In this case, Ethan can decide how many tickets