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Quadratic Formula 4-7 Today’s Objective: I can use the quadratic formula to solve quadratic equations.

Published byDomenic O’Neal’ Modified over 9 years ago

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Presentation on theme: "Quadratic Formula 4-7 Today’s Objective: I can use the quadratic formula to solve quadratic equations."— Presentation transcript:

1 Quadratic Formula 4-7 Today’s Objective: I can use the quadratic formula to solve quadratic equations.

2 On this happy face, what quadratic function graphs a smile that crosses the x-axis twice? touches the x-axis once? misses the x-axis completely?

3 Solve by factoring: Solve by completing the square: Review solving methods:

4 Quadratic Formula Quadratic Equation must equal 0!

5 Using the Quadratic Formula:

6

7 Discriminant and Solutions Discriminant 2 real solutions 1 real solutionsNo real solutions p. 245:11-21 odd, 25-28, 37, 57, 68

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