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Mathematics 8 Online
OpenStudy (anonymous):

Help with limits :l

OpenStudy (anonymous):

OpenStudy (anonymous):

@zepdrix I NEED YOUUU AGAIN!!! LOL

zepdrix (zepdrix):

So the trick with determining limits from a graph is... always look at the line, not the bubble. f(2)=-1, the function is defined way down below. But we don't care about the bubble. We want to know, what y value is the line getting close to as we approach x=3 from the right.

zepdrix (zepdrix):

I mean x=2*

OpenStudy (anonymous):

from the right it's getting close to 4 right? and from the left it's getting close to 1?

zepdrix (zepdrix):

correct \c:/

OpenStudy (anonymous):

so how do I know which one should be the answer? bahahaha do you always use the rightside? @zepdrix

zepdrix (zepdrix):

Oh my bad. \[\Large \lim_{x\to2^+}f(x)\]See the little tiny plus sign in the exponent position? That's telling you to approach from the right.

OpenStudy (anonymous):

OHHHHH! ok :D makes sense now!! thanks <3

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