Télécharger la présentation
## Do Now

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -

**Do Now**Factor**Quadratic Equations**7/1/13 Happy July!**Friday’s Quiz Results**100% QuizzesRuben Alex Omar Kyra Jorge**Quadratic Functions**• A quadratic equation is a polynomial equation of degree 2. • What do graphs of quadratics look like? • Parabolas! • Make a table of values**Graphing**• The axis of symmetry is a line that divides a parabola into two halves that are reflection of each other. • The vertex is the point on the parabola intersected by the line of symmetry. It is the maximum or minimum point of the graph.**How to Find This Stuff**• Axis of Symmetry: • If , the parabola opens up, meaning the vertex is a minimum. • If , the parabola opens down, meaning the vertex is a maximum.**Find the line of symmetry**1) 2) 3)**Solving Quadratics by Factoring**• ZERO PRODUCT PROPERTY • If the product of two algebraic expressions is zero, then at least one of the factors is equal to zero.**Solve by Factoring**3) 4)**YAY MATH**• P. 152 #1-14**Completing the Square**• A square binomial, such as has the FOILed form of • We can look at a quadratic like . Both the first and last terms are perfect squares and the middle term is double the product of the two – IT’S ALMOST LIKE WE LEARNED THIS LAST WEEK.**Completing the Square**• Check this out: • 0 • The first term is a square, but not the last. Obviously, the middle term is not double the product of two. Sooooooooooooo what can we do to get around this? • What would we like this number to be? Why?**Completing the Square**Find one half of Square the result from step 1 Add and subtract the result of Step 2 to**Completing the Square**What term should be added to each binomial so that it becomes a perfect square trinomial? Write and factor the trinomial.**Completing the Square**What term should be added to each binomial so that it becomes a perfect square trinomial? Write and factor the trinomial.**Completing the Square Practice**• P. 152 #35-64 odd**Tourney Time**• In a round robin rock/paper/scissors tournament, each player is paired with every other player once. The formula models the number of R/P/S games, N, that must be played in a round-robin R/P/S tournament with x players. 1) In a tournament, 20 games were played. How many players were entered in the tournament? 2) In a tournament, 30 games were played. How many players were entered in the tournament?**Quadratic Formula Practice**p. 152 #65-74 odd Finished Early? p. 152 #83-98**Daily Quiz**• Good luck!