You live near a bridge that goes over a river. The underside of the bridge is an arch that can be modeled with the function y=-0.000475x^2+0.851x, where x and y are in feet. How high above the river is the bridge (top of the arch)? How long is the section of the bridge above the arch?This feature of our site requires you to log in or register.
Click here to register, it is free!
Register in one easy step!. Reset your password if you forgot it.