Current location - Plastic Surgery and Aesthetics Network - Wedding supplies - There is a huge arch bridge in St. Louis, USA. The height and bottom width of this arch bridge are 192m, and the stainless steel arch is American.
There is a huge arch bridge in St. Louis, USA. The height and bottom width of this arch bridge are 192m, and the stainless steel arch is American.
Establish a coordinate system with the midpoint of the arch bottom as the origin, the horizontal plane as the X axis and the vertical direction as the Y axis.
Let y = ax 2+192.
Because the parabola passes through the point (8 1, 0)
So 0 = 8 1 2a+ 192.
The solution is a=-2/8 1.
So the secondary resolution function corresponding to the arch bridge is: