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:

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Video:

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

Watch this video on Solving Quadratic Equations by Graphing

Watch this video on Solving Quadratic Equations by Graphing

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

Activities:

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