1. Quadratic Formula & the Discriminant
Chapter 4.8
Quadratic Formula & the Discriminant
p , 40, 41, 44
#29 Who solved the square root of infinity.

2. From last week

3. Discriminant
The part of the quadratic equation under the radical is called the discriminant. The discriminant can be used to determine the number of solutions of a quadratic.
Two Real Solutions
One Real Solution
Two Imaginary Solutions

4. Give the number & types of solutions for each.
Examples
Give the number & types of solutions for each.
Two Real Solutions
Two Imaginary Solutions

5. Quadratic Equation

6. Example a b c

7. Example a b c

8. Example a b c

9. extra

10. Some times you will not get a real number

11. Example a b c

12. You can also use the quadratic equation to Factor

13. Assignment
p , 40, 41, 44