Algebra 1 - Rational Functions

| No Comments | 1 TrackBack

A rational function is a function whose rule is a quotient of polynomials in which the denominator has a degree of at least 1.  Today's free Algebra 1 video covers Rational Functions over 4 lectures with the wonderful Professor Edward Burger. In today's video you'll be identifying excluded values, which are values of x that make the function value y undefined in any function involving both x and y.  Then you'll jump to graphing rational functions when Professor Burger teaches about identifying asymptotes. An asymptote is a line that a graph gets closer to as the absolute value of a variable increases. To graph a rational function, you need to find the vertical and horizontal asymptote. And finally, in the very last lesson, Professor Burger will demonstrate a real world use of rational functions: cutting diamonds! Who knew that math was used in maximizing the brilliance of diamonds!? Watch all 4 lectures to get a great overview of rational functions. Just don't forget to click on the forward button to the left of the time stamp to move to the next lecture.

Have you seen our math placement tests? It can be difficult deciding what course best suits your student. So stop guessing and instead use our free placement tests! They'll help you determine your student's skill level and where in our curriculum sequence they belong.

rationalfunctions-thumbnail.jpg

1 TrackBack

TrackBack URL: http://blog.thinkwell.com/cgi-bin/mt/mt-tb.cgi/171

If you followed us this week, you've seen the free videos on Rational Functions and Expressions. Today it's time to test how much of that knowledge you retained as we're sharing a free Algebra 1 worksheet. Get ready to identify excluded values and asym... Read More

Leave a comment

About this Entry

This page contains a single entry by April Stockwell published on October 18, 2010 2:22 PM.

Algebra 1 - Solving Radical Equations was the previous entry in this blog.

Algebra 1 - Simplifying Rational Expressions is the next entry in this blog.

Find recent content on the main index or look in the archives to find all content.