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Warm up – Solve by Taking Roots

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Skills Check – Solve by Taking Roots

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Questions over HW?

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The Discriminant

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The Discriminant tells how many & what type of solutions the quadratic has.

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Put the quadratic in standard form first!

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If the discriminant is POSITIVE, then you will have 2 real roots. If the discriminant is ZERO, then you will have 1 real root. If the discriminant is NEGATIVE, then you will have 2 imaginary roots.

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Foldable Notes Fold your paper over (top to bottom leaving about an inch at the bottom).

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Determine the number & types of roots. Example: 1

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Determine the number & type of roots. Example: 2

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Determine the number & type of roots. Example: 3

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Solving by the Quadratic Formula

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Quadratic Formula Everything must be on the same side of the equals sign before solving

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Question #1 Use the quadratic formula to find the zeros.

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Question #2 Use the quadratic formula to find the zeros.

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Question #3 Use the quadratic formula to find the zeros.

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Question #4 Use the quadratic formula to find the zeros.

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Homework Solving Quadratics WS

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4.2 Quadratic Functions Objective: Solve quadratic equations. Use the discriminant to describe the roots of a quadratic equation.

4.2 Quadratic Functions Objective: Solve quadratic equations. Use the discriminant to describe the roots of a quadratic equation.

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