Assume That the Elevation E , in Feet, of a Sag

Multiple Choice

Assume that the elevation E , in feet, of a sag in a proposed route is given by E(x) =0.000036x²-0.29+1300 , where x represents the horizontal distance in feet along the proposed route and $0 \leq x \leq 5000$
For what x -values is the elevation 1150 feet? Round your answer to the nearest foot.

A) x=566 ft or x=7500 ft
B) x=556 ft or x=7510 ft
C) x=556 ft or x=7500 ft
D) x=566 ft or x=7510 ft