Chapter 9‎ > ‎

### 9.2A Solving Quadratic Equations by Graphing

Standard:

• A.REI.4b: Solve quadratic equations by inspection, taking square roots, completing the square, the quadratic formula, factoring, and graphing as appropriate to the initial form of the equation.
• F.IF.7a: Graph linear and quadratic functions and show intercepts, maxima, and minima.

Essential Questions:

• How are quadratic functions used to model, analyze, and interpret mathematical relationships?
• What are the different ways to solve a quadratic equation, and when is each appropriate?

Learning Targets:

• I can graph a quadratic function and calculate the x-intercepts

Warm-Up:

Notes:

Click on the image below for the PDF of the notes 9.2A Solving Quadratic Equations by Graphing

Video:

Click below for the Classroom Lesson -  9.2A Solving Quadratic Equations by Graphing

Watch this video on Solving Quadratic Equations by Graphing
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Watch this video on Solving Quadratic Equations by Graphing
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Watch this video on Solving Quadratic Equations by Graphing Using a Graphing Calculator
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Activities:

Click on the image below for an activity -  Solving Quadratic Equations by Graphing
• Click on the image below for a review -  Solving Quadratic Equations by Graphing
• Assessment/Homework:
pg. 540 11,15,17,28,36