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A farmer has two water tanks that drain at a rate of 2.5 gallons per minute. He is considering replacing the existing tanks with new ones, either Model S or Model T. Information about the new tanks is shown below. All tanks, old and new, hold 100 gallons of water and drain at a constant rate.

Select all options that correctly represent the situation.

The equation, y = 4x + 86, represents the Model T tank.

The existing tanks drain the slowest at 2.5 gallons per minute.

The equation, y = -3x + 100, represents the Model S tank.

The equation, y = 2.5x + 100, represents the existing tanks.

The Model S tank drains the fastest at 3 gallons per minute.

The Model T tank drains the fastest at 3.5 gallons per minute.