Workers have 1600 m of fencing to enclose a rectangular area where a music festival will be held. The table represents a quadratic function that shows how the area of the rectangle formed by the fence depends on the length of the rectangle.
Length (m) Area (m²)
0 0
100 70,000
200 120,000
300 150,000
400 160,000
500 150,000
600 120,000
700 70,000
800 0

Select from the drop-down menu to correctly complete the sentence.

The x-coordinate of the vertex represents

the length that result in the largest possible area

the smallest possible area of the rectangle

the greatest possible length of any rectangle formed

the greatest possible area of a rectangle