Question

DESIGN A footbridge is suspended from a parabolic support. The function h(x) = x2 + 9 represents the height in feet of the support above the walkway, where x = 0 represents the midpoint of the bridge

b. What is the length of the walkway between the points where the support intersects the walkway?

Answer 1

the midpoint of the bridge 2(0)+9

so y=9. (0,9)

so the length is 30 feet

Answer 2

h= x(^2) +9

X. the "(^2)" is x to the 2nd power