The equation for the arch of a particular bridge is given by h = − 1/500(x − 100)^2 + 20, where h meters is the height above the
base of the bridge and x meters is the distance from the left side.
a Determine the coordinates of the turning point of the
graph.
b Determine the x-intercepts of the graph.
c Sketch the graph of the arch for appropriate values of x.
d What is the span of the arch?
e What is the maximum height of the arch?