You need to find the position function, s(t).
Solve for C, by evaluating the given point s(0)=500.
Check your work:
s(1) = 466 ft
s(2) = 400 ft
s(3) = 302 ft
Refer to the hint in part (a).
Use the eTool below to visualize the problem.
Click the link at right for the full version of the eTool: Calc 4-127 HW eTool