What is a Podcast?
July 22nd, 2010
This podcast is not about math. This is just a simple explanation of what a podcast is. I have created this podcast to help my students learn more about podcasts. They will eventually help me make more math podcasts. I am very much so looking forward to this project.
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Solve a quadratic equation by using substitution 2
March 22nd, 2010
Here is another example how to use substitution to solve a quadratic equation. Now I know that there are other ways to solve this particular example (squaring both sides), but I wanted to show that substitution is a good way to solve a quadratic equation.
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Solve a quadratic equation by using substitution
March 22nd, 2010
Sometimes we will encounter a problem that just looks ugly. In other words, it is one of those problems we just would rather skip. However, as you will see in this problem, substituting a quantity for a single variable really does make the problem much more manageable.
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Graphing a quadratic in vertex form 2
March 22nd, 2010
Here is another example of graphing a quadratic equation that is in vertex form. In this example, a is negative which causes the graph to open down and frown:-(
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Graphing a quadratic in vertex form
March 22nd, 2010
Graphing a quadratic equation is not a difficult task. Here are the main things to find: the vertex, the axis of symmetry, the y-intercept, and the x-intercepts. Use the fact that a parabola is symmetrical also makes it easier for us to find additional points.
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The quadratic formula.
March 22nd, 2010
Here is a bit of fun I had with one of my Alg II classes reviewing the quadratic formula.
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Using the quadratic formula to solve a quadratic equation 2.
March 22nd, 2010
Here is another example of solving a quadratic equation using the quadratic formula.
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Using the quadratic formula to solve a quadratic equation.
March 22nd, 2010
A great way to solve a quadratic equation is by using the quadratic formula. It is straight forward and user friendly in my opinion. Many students prefer using the quadratic formula over the other leading brands of solving a quadratic equation.
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Special Edition Completing the Square
March 4th, 2010
In this next example, you will see just how great completing the square really is. At the end, you might recognize the solution.
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Solve a quadratic equation by completing the square 3
March 4th, 2010
Some students do not like to use the process known as completing the square. However, I will show you just how easy it really is to complete the square.
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