Question 4
part a
describe a relationship that can be modeled by the function represented by the graph, and explain how the function models the relationship. a function that is a straight line between the points (0, 38) and (15, 38); the function forms an upward-opening parabola between the points (15, 38) and (65, 17). from there, the function forms a straight line from the point (65,17) to (87,30) and continues off the graph.
part b
identify and interpret the key features of the function in the context of the situation you described in part a.