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Warm-Up: January 11, 2012. Solve by completing the square. Homework Questions?. The Quadratic Formula and the Discriminant. Section 6-5. Deriving the Quadratic Formula. The Quadratic Formula. Example 1. Solve using the quadratic formula. Warm-Up: January 13, 2012.
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Warm-Up: January 11, 2012 • Solve by completing the square
The Quadratic Formula and the Discriminant Section 6-5
Example 1 • Solve using the quadratic formula
Warm-Up: January 13, 2012 • Solve using the quadratic formula:
You-Try #2 • Solve using the quadratic formula
The Discriminant • The discriminant is b2-4ac • The value of the discriminant can be used to determine the number and type of roots of a quadratic equation.
Example 3 • Find the value of the discriminant. • Describe the number and type of roots. • Find the exact solutions by using the quadratic formula.
You-Try #3 • Find the value of the discriminant. • Describe the number and type of roots. • Find the exact solutions by using the quadratic formula.
Example 4 • Find the value of the discriminant. • Describe the number and type of roots. • Find the exact solutions by using the quadratic formula.
You-Try #4 • Find the value of the discriminant. • Describe the number and type of roots. • Find the exact solutions by using the quadratic formula.
Assignment • Page 318 #15-39 odd