The figure below shows a road running in the shape of a parabola from the bottom of a hill at A to point B. At B it changes to a line and continues on to C. The equation of the road is represented by R(x), also shown below.
B is 1000 feet horrizontally from A and 100 feet higher. Since the road is smooth, R'(x) is continuous. What is the value of b?
i was thinking that the answer is (A). because (100/1000)*2 = 0.2.
thanks for the help guys