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.

Question

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.

Quizplus · Accepted Answer

To find the $x$-values where the elevation $E(x) = 1150$ feet, we substitute $E(x) = 1150$ into the given equation and solve for $x$. The correct $x$-values, rounded to the nearest foot, that satisfy this condition are $x = 556$ ft and $x = 7500$ ft, which corresponds to option C.

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