# Finding Vertical and Horizontal Asymptotes

Taught by mrbrianmclogan
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Part of video series
Meets NCTM Standards:
Errors in this video:

At about the 286 second mark, he says "x minus 3" when he should be saying "x minus 2".

Lesson Summary:

In this lesson, we learn how to find the vertical and horizontal asymptotes of a function. To find the vertical asymptote, we set the function equal to zero and solve for x, which gives us the line that the function approaches but never touches. The domain of the function excludes this line. To find the horizontal asymptote, we look at the degrees of the polynomials and apply a test which tells us whether the asymptote is at zero, a constant, or infinity. These lines act as barriers that the function cannot cross or touch.

Lesson Description:

Finding the vertical and horizontal asymptote of a function

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