Suppose that while driving a car, the driver suddenly sees an animal standing in the road. The driver's brain registers the information and sends a signal to the driver's foot to hit the brake. The car travels a distance D, in feet, during this time, where D is a function of the speed r, in miles per hour, of the car when the driver sees the animal. That reaction distance is a linear function given by D(r) = 11/10r + 1/2 . Complete parts a through c below. ) Find the slope of this line and interpret its meaning in this application. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.

A.

The slope m is blank. For each mile per hour faster that the car travels, it takes

nothing feet longer to stop.

B.

The slope is not defined. For each mile per hour faster that the car travels, it takes 0 foot longer to stop.

b) Find D(5),D(10) ,D(15) ,D(60) , and D(7