Splash 'n' Slide Water Park Problem

The maintenance crew at the Splash 'n' Slide water park have found that their main attraction, the Big Khuna Water Slide, needs some additional vertical bracing. There already exists a 10-foot vertical brace near the bottom and a 46-foot vertical brace near the top that is 72 feet from the bottom brace. Two more vertical braces are needed that are equally spaced between these two braces.
1. What are the coordinates for the top of the slide? 2. Find an equation for the line modeling the slide. 3. How long should each of the additional braces be? Why?