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Coolmath Algebra
Graphing Quadratics Lesson 3 - Graphing Parabolas Part 2  (page 3 of 3)
---- This algebra lesson explains how to do horizontal shifts when graphing parabolas.

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TRY IT:

Graph these and remember to identify what's going on -- and not by plotting points.  Label 5 points!

y = ( x - 1 )^2

y = ( x + 3 )^2

Let's sum up what we've got here:

When there's a number INSIDE with the x guy:

It's a horizontal shift!

y = ( x - h )^2
 

Find the x value that makes it  

and shift it horizontally to that spot.

*I always remember that, if the extra thing is inside with the x, then if affects x values -- these move it back and forth along the x-axis.

Check out this animation for a little review:

 The printing and distribution and/or downloading of these lessons is strictly prohibited.
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