Warm Up a)Find the y-intercept, the axis, and the vertex b)Make a table c)Graph the function d)State whether the function has a minimum or maximum e)Find.

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Presentation transcript:

Warm Up a)Find the y-intercept, the axis, and the vertex b)Make a table c)Graph the function d)State whether the function has a minimum or maximum e)Find the value of the min/max

Summary Page This is an overview of all the different ways we can solve a quadratic function. You are required to keep this page.

Pop Quizzes You will have 5 pop quizzes this chapter. At the end of the chapter I will average all five of your pop quiz grades for a test grade. You will keep track of your pop quiz grades on the back of the summary page.

4.2 Solving by Graphing

Solving by Graphing The solutions of a quadratic are where the parabola crosses the x-axis. How many solutions do you see? Do you think it is possible to have a number of solutions other than 2?

Solutions There are multiple names for solutions, but they all mean the same thing…

Quadratic Equation

Example

Try One!

Estimating Roots

Example

Try One!

Big Picture a)Find the y-intercept, the axis, and the vertex b)Make a table c)Graph the function d)State whether the function has a minimum or maximum e)Find the value of the min/max f)Find the roots

You Try! a)Find the y-intercept, the axis, and the vertex b)Make a table c)Graph the function d)State whether the function has a minimum or maximum e)Find the value of the min/max f)Find the roots

HOMEWORK Lesson 4.2 Pg. 233 #’s 4-11