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Section 5.8 The Quadratic Formula

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# Section 5.8 The Quadratic Formula - PowerPoint PPT Presentation

Section 5.8 The Quadratic Formula. Obj : to solve quadratic equations using the quadratic formula Obj : to use the discriminant to state the number and nature of solutions to a quadratic equation. Y = a + bx + c. Quadratic Formula: Discriminant:

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### Section 5.8The Quadratic Formula

Obj: to solve quadratic equations using the quadratic formula

Obj: to use the discriminant to state the number and nature of solutions to a quadratic equation

Y = a + bx + c

Quadratic Formula:

Discriminant:

Tells you what type and how many solutions you can expect to get from your equation

Discriminant:

The discriminant tells you how many andwhat type (nature) of solutions to expect from your equation.

• If is positive, then your equation will have 2 real solutions.
• If = negative, then your equations will have 2 imaginary solutions.
• If = 0, then your equation will have 1 real solution.
Assign: Pg. 289 column 1
• Solve using the quadratic formula
• Use the discriminant to predict the number and nature of the solutions.