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You probably haven't seen these
before, but they really do make ultra cool Calculus problems. I've
seen them in most texts. They're really pretty easy if you look at
them the right way. ** For
this one lesson, I'll be dumping my usual color scheme.
We'll be going with green for
positive and red for
negative. In the next lesson, we'll be back
to normal.
First,
let's really look at what absolute values do:
Absolute values leave
positive numbers and
zero alone... and make negative
numbers positive!
So, with graphs... let's think
about the y guys:
Continued on the
next
page
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