Final answer:
The linear relationship between the number of student tickets and adult tickets sold for the One Direction Reunion Show can be expressed as 80x + 130y = 80,000.
Step-by-step explanation:
The linear relationship between the number of student tickets (x) and adult tickets (y) sold for the One Direction Reunion Show can be expressed as the equation 80x + 130y = 80,000. This equation is in standard form, which is in the form Ax + By = C. In this equation, 80 represents the cost of a student ticket and 130 represents the cost of an adult ticket.