Help Q21

While driving a car, you see a child suddenly crossing the street. Your brain registers the a) Find D(5), D(20), D(50), and D(65). emergency and sends a signal to your foot to hit the brake. The car travels a reaction distance D. in feet, during the time it takes you to react, where D is a function of the car's speed r, in miles D(5) = per hour. That reaction distance is a linear function given below. Complete parts (a) through (d). D(20) = 15 + 7 D(50) = D() = D(65) = (Round to the nearest tenth as needed.)