The graph models A, the area in square feet of a rectangular porch with a length that is 0.56w less than 28 ft given a width of w feet.
Porch Area
450
400
350
300
Area (ft)
250
200
150
100
50
a

5 10 15 20 25 30 35 40 45 50
Width (ft)
Based on the graph, what is the width in feet of the porch with the greatest area?
A. 175 ft.
B. 50 ft.
C. 25 ft.
D. 350 ft.