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Before we actually try to graph a
rational function, it would be nice to remember what these things are!
They're those guys like
Where you have a
polynomial over another polynomial.
To graph these, we'll
need
2
things
and
2 sentences
That's it!
Here are the
2 things:
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intercepts |
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asymptotes |
Here are the
2 sentences:
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These guys are functions. |
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Graphs hug asymptotes. |
Don't worry -- the next
sections will tell you what these things mean. Until then,
memorize this!
Since plotting points is
for sissies, it will be our personal challenge to graph these things
ONLY using the 2 things
and the 2 sentences.
Oh, and one more thing: our brains!
*Note: Until you
learn Calculus, we'll really just be able to get rough sketches of these
things. Calculus will give you other stuff to really nail them!
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prohibited. |
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