How Did the Function Cross the Bridge? "In the world of architecture, polynomial functions are everywhere you look! Find the dimensions of the Sheikh Zayed Bridge, pictured above. Use this information to determine a polynomial or a piecewise polynomial function that could be used to describe the bridge’s curved support structure. First review the image in the Whiteboard. Then, use the Graphing Calculator to graph the function or functions that define the Sheikh Zayed Bridge."

The graph is below, here is what the question is asking for:

How many pieces of functions could be used to define it? What are they? What are the domain and range of each one?

This is from Discovery Education Algebra 2 Math Techbook, Unit 5, Concept 5.3, Analyze Polynomial Functions.
Giving Brainiest! I will report you if you give an answer that is too short or is not even sensible. 100 points are on the line, so I expect a full and thorough explanation, showing all work. Graphing calculator is allowed. May the best person win!

A full image of the question is shown below along with evaluation criteria.