arlena has started taking photos at amateur dog racing events later offering the photos for sale to the dog owners by email The prices she has charged per photo at ach of her first three events and the corresponding number of photos sold and total revenue raised appear in the table below Price per Photo 52 44 32 400 Treating revenue as a function of the number of photos sold a graph of the three data points is also shown If she uses quadratic regression to fit a curve to the data what number of photos sold and what price per photo will maximize her revenue Revenue 350 300 250 200 150 100 Number of Photos Sold 5 7 10 50 Revenue 260 308 320 Enable Zoom Pan