Ch 3.1: Solving Quadratic Equations

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Presentation transcript:

Ch 3.1: Solving Quadratic Equations

Questions?

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

Prerequisites (Warm Up) Simplify 8 3) Factor x²-4 Simplify 7 36 4) Factor x²-14x +49

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

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.

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

Hw Questions?

Projectile Motion Scavenger Hunt

HW Pg 100 #59-61, 67, 69-72

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