1. 9-2 B Solving Quadratic Equations

2. Falling Object Model
( When an object with little air resistance is dropped, its speed will continually increase)
h = -16t2 + s
h the height (in feet) of such an object when done falling
sthe height(in feet) from which the object was dropped
tthe # of seconds in which it has fallen

3. Example h = -16t2+s
A swimmer drops a towel from a 10 foot diving board. How many seconds will it take to hit the pool deck?

4. Example
A ball is dropped from a 300 foot building. How many seconds will it take to hit the ground?

5. Homework