# SECTION 3.9 SOLVING QUADRATIC INEQUALITIES Feb 25 th 2010 p. 97 in your book.

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SECTION 3.9 SOLVING QUADRATIC INEQUALITIES Feb 25 th 2010 p. 97 in your book

TOMORROWS QUIZ… Sections 3.3 & 3.9 Sections 3.3 & 3.9 Graphing using a table (standard form) Graphing using a table (standard form) Interval of Increase / Decrease Interval of Increase / Decrease Find the Slope (Rate of Change) Find the Slope (Rate of Change) Calculate Average Rate of Change Calculate Average Rate of Change Is the ordered pair a solution? Is the ordered pair a solution? Graphing Quadratic Inequalities Graphing Quadratic Inequalities Solving Quadratic Inequalities Solving Quadratic Inequalities

Is this a solution? –Is the point ( 2, 1 ) a solution?

Graph the inequality?

Solve the Inequality We can solve by finding vertex and intercepts

Solve the Inequality We can solve by finding vertex and intercepts

Try these on your paper… You decide how to solve…use method of your choice. p. 99 #s 31, 32, 33

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