Final answer:
The shape of the supply curve for tickets to football games at the stadium with 70,000 seats would most likely be upward sloping.
Step-by-step explanation:
The shape of the supply curve for tickets to football games at the stadium with 70,000 seats would most likely be upward sloping.
An upward sloping supply curve indicates that as the price of tickets increases, the quantity supplied by sellers also increases.
This is because higher prices incentivize sellers to supply more tickets to the market in order to maximize their profits.