5.5 Quadratic Equations

Quizzes back TOMORROW…I hope…

Solving by Factoring

1a) Solve.

15112 2 xx

Solving by Factoring

1b) Solve.

xx 816 2

Solving by Finding Square Roots

2a) Solve 01805 2 x

Solving by Finding Square Roots

2b) Solve 0254 2 x

Solving by Finding Square Roots

3) The function models the height y in feet of a heavy object x seconds after it is dropped from the top of a building that is 270 feet tall. How long does it take the object to hit the ground?

27016 2 xy

Solving by Finding Square Roots

3) The function models the height y in feet of a heavy object x seconds after it is dropped from the top of a building that is 270 feet tall. How long does it take the object to hit the ground?

27016 2 xy

Start

y = 0

Finish

y = 0