a rock is thrown down from the top of a 500-foot cliff. After 1 second, the rock is traveling 47 feet per second. After second the rock ia traveling 111 feet per second. Assume that the relationship between time,t, and speed,s, is linear and write an equation describing this relationship. Use ordered pairs of the form (time,speed).

SInce this is homework, and the rules require you to attempt it first... what do you think the answer is and how did you arrive at it?