You are out on the river in a boat and a fish jumps up out of the water and over your boat, from the left side to the right. For simplicity we will assume the boat is not on either bank (or in the parking lot).
The path of the fish can be modeled by one of the equations below, and forms a parabola opening down. Let's consider
the surface of the water to be the x-axis, the bank to be the y-axis, and the river is 50 feet wide.
(1) The following function could represent this situation: F(x) = -x + 10x -21

Explain why the others do not fit the story.
a. F(x) = -x?- 10x - 16
b. F(x) = x2 - 6x + 13
C. F(x) = -x + 6x -13