On a long road trip you are driving along a straight highway. Suppose that t hours after entering Nevada your distance from a certain landmark is s(t) = -12t2 - 24t + 96 miles,
a. How long will it take you to reach the landmark after entering Nevada?
b. Find your velocity v(t) as you drive toward the landmark.
c. Are you accelerating or decelerating as you approach the landmark?