Solving an equation with variables in the denominator

In this example we use the  rational root theorem and synthetic substitution to find the zeros and factors of a polynomial to the third degree.

12 Juni 20136min

In this episode, there are 2 examples of verifying trig identities that I would rate on the more difficult side.  More advanced strategies are needed such as factoring and finding a common denominator...

11 Juni 20135min

In this episode, we look at verifying trig identities.  There are 3 examples that I would rate on the easier side.  You need to start somewhere.

11 Juni 20135min

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 ...

22 Juli 20103min

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 s...

23 Mars 20103min

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 f...

23 Mars 20102min

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:-(

23 Mars 20103min

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 sym...

23 Mars 20103min