Key Concepts for Sect. 5.5 *The Zero Product Property:

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Solving Quadratic Equations Using the Zero Product Property

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Presentation transcript:

Key Concepts for Sect. 5.5 *The Zero Product Property: If ab = 0, then a = 0 or b = 0.

Guided Practice for Sect. 5.5 Ex 1: Find the x-intercepts (zeros/roots) of each function. a) y = x2 - 10x - 24

Ex 1: b) y = x2 + 8x + 15

Ex 1: c) y = x2 - 7x + 12

Guided Practice for Sect 5.5 Ex 2: Find the zeros (x-intercepts/roots) of each function. a) y = 3x2 - 20x - 7

Ex 2: b) y = 2x2 + 4x - 6

On Your Own Find the zeros (roots/x-intercepts) of each function. a) y = 2x2 - 11x + 15 b) y = 6x2 + 13x + 6

Answers: 1) (2.5, 0) and (3, 0) 2) (-1.5, 0) and (-2/3, 0)

Guided Practice for Sect. 5.5 Ex 3: Solve each equation. a) 16x2 = 8x

Ex 3: b) 6x2 = 486

Ex 3: c) 3x2 + 27x = 0

On Your Own Find the zeros (roots/x-intercepts) of the function. 1) y = 5x2 - 180

Answer: 1) (-6, 0) and (6, 0)