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4.4 Notes: Solve Quadratics by Graphing and Factoring
Presentation
•
Mathematics
•
8th - 11th Grade
•
Practice Problem
•
Easy
Standards-aligned
Steve Dull
Used 27+ times
FREE Resource
12 Slides • 3 Questions
1
2
To solve quadratic equations by factoring.
3
4
The zero of a function is the value of the input x that makes the output f(x) equal 0.
What are the zeros of the function that is pictured here?
5
It's not always convenient to graph a quadratic and try to find its zeros from a graph, although technology makes that job easier:
6
7
8
Open Ended
Factor
x2−10x+21
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So let's take it a step further.
10
The equation must be solved for 0
before you can use the Zero Product Property. If you have something other than 0 on one side of the equal sign, you must solve for 0 first before factoring.
11
Open Ended
Solve
x2−10x+21=0
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13
14
Poll
Select the image that most closely you feel about being able to solve quadratic equations by factoring;
Seriously Mr. Dull? That's the worst joke I've ever heard.
15
Complete the remainder of problems #1 - 8 on your 4.4 Notes handout.
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