1. Ch 3.1: Solving Quadratic Equations

2. Questions?

3. Without your calculator :]
Try to do this first
Without your calculator :]

5. Prerequisites (Warm Up)
Simplify ) Factor x²-4
Simplify ) Factor x²-14x +49

6. 3.1 Definitions
Recall a quadratic equation in “one variable” is an equation that can be written as
A root of an equation is a “solution” of the equation above.
ROOT = ZERO = X-INTERCEPT

7. The Fundamental Theorem of Algebra
If f(x) is a polynomial of degree n where n > 0, then the equation f(x) = 0 has exactly n solutions. If a solution is repeated twice it is counted as two solutions.

8. Ways to find “solutions” of quadratic equations in 1 variable
OR use the quadratic formula

15. Hw Questions?

19. Projectile Motion Scavenger Hunt

20. HW
Pg 100 #59-61, 67,

21. HW
Pg 99 # 15, 17, 21, 25, 51, 53, 55,