Brightstorm is like having a personal tutor for every subject

See what all the buzz is about

Check it out
Don't Stop Learning Now!

Gain access to 3,500 HD videos.

Convince me!

Watch 1 minute preview of this video

or

Get Immediate Access with 1 week FREE trial
Your video will begin after this quick intro to Brightstorm.

Introduction to Rational Functions - Problem 6 187 views

The most basic graph of a rational function, y = 1/x , has two "branches" and two boundary lines, or asymptotes. Since x could never be zero in this function, we have a vertical line at x = 0 that the branches will never touch. Similarly, there is no way that the output y could equal zero, so we have a horizontal boundary line at y = 0. Here we look at shifting the branches vertically (note how the vertical asymptote stays at x = 0, but the horizontal asymptote will move up or down) by adding or subtracting a constant after the fraction. These vertical transformations apply to other function types, or families, as well.

Transcript Coming Soon!