Use the given graph to determine the limit, if it exists.
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Question

Use the given graph to determine the limit, if it exists. 
Need help with this!

anonymous · Answer

find lim f(x) as x approaches 3+

anonymous · Answer

oh boy...

reemii · Answer

$\lim_{x\to 3+} f(x) = \lim_{x\to 3+}3 = 3$. why? because for every x>3 (and that is the case since "$x\to 3+$"), we have $f(x)=3$.

reemii · Answer

that is for the computation. for finding the answer with the graph only, think of a point traveling on the graph, coming from the right side of 3.
At each moment ask yourself "what is the y-value of my position?". here, at any moment, the y-value is 3 (it is forbidden to reach the point above x=3 by definition of "x->3+". so , the y-values, as time goes by, are 3, 3, 3, 3, .... etc. the limit of this sequence is 3.

anonymous · Answer

okay so is it 3,3 ?

reemii · Answer

The answer is 3

anonymous · Answer

eeep but all the other ones are coordinates

reemii · Answer

what are "the other ones" ?

anonymous · Answer

the other problems on my worksheet

reemii · Answer

oh then they might indeed wait for (3, 3) as the answer..
I'm used to write only one number.