Given that one foot is approximately equal to 0.3048 meters, covert the stadium area of 3 million square feet to square meters.
the stadium area is meters squared.

The stadium area is 278,709 meters squared.

If             1 ft = 0.3048 meters                
               1square feet = 0.3048 x 0.3048 = 0.09290304 square meter.                

Then 3,000,000 square feet x 0.09290304 sq. m = 278,709.12

The correct graph is the second one, with the points being at (-6,0), (2,0) and reaching down to (-2,-8)