1. Word Problems: Quadratic Functions

2. Can you think of anything that makes these parabola shapes?

3. Word Problems Your friend punts a football. Its altitude h in feet after t seconds is given by the function h = -3t 2 + 24t a.) In how many seconds does the football reach maximum altitude? b.) What is the maximum altitude?

4. Word Problems Your friend punts a football. Its altitude h in feet after t seconds is given by the function h = -3t 2 + 24t Negative a: downward No constant (c) : y-intercept at 0. Height (h) Time (t) Picture the path of a football after being punted.

5. h = -3t 2 + 24t a.) In how many seconds does the football reach maximum altitude? Height (h) Time (t) Maximum = the Vertex seconds

6. h = -3t 2 + 24t b.) What is the maximum altitude? Height (h) Time (t) Vertex: (4, ?) feet h = -3(4) 2 + 24(4) h = -3(16) + 96 h = -48 +96 h = 48

7. Homework: pg 330 (2-26 evens)