#Calculus 1 Homework Assignment Confusion

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lost stirrup
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I recently started this Calculus course. I do not understand what the question is asking or what steps I need to take in order to solve it.

lime acornBOT
lost stirrup
supple rock
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The question is : What is the value of f when it approches x ?

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You have to look in the graph at the coordinates given

lost stirrup
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How do I determine the coordinates?

supple rock
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lim x-> 0+ it's like find f(x) when x is very close of 0 by the right

lost stirrup
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Oh okay, I remember trying that earlier. I started having trouble with the ones that did not have a sign attatched, what should I do for the 0 without + or -?

supple rock
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Here it's not defined because the function isn't continuous

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For x=0

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But for x=1 it's the same

lost stirrup
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I am sorry I just realized there are 2 with 0, I meant c but I am also confused with what to do with d

lost stirrup
supple rock
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Yes

lost stirrup
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Oh okay

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So what I meant by c is that the thing at the bottom of where it says limit has no + or - attached, is it automatically positive?

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And the right side?

supple rock
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No, if there no sign it's the one which is defined

lost stirrup
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So for example g would be 2 since that’s the number it’s going to?

supple rock
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Yes

lost stirrup
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Okay great

supple rock
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When it's continuous it's doesn't matter

lost stirrup
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Do these look okay so far?

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d h l and q say “DNE”, I am sorry it kind of looks like “ONE”

supple rock
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The dotted lines mean that the curve does not cross it

lost stirrup
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Oh okay

supple rock
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For lim x-> 0 it's like f(0) because you don't know if it's 3 or -1

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Same thing for lim x->-3

lost stirrup
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Alright, so the two would be DNE?

supple rock
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Yes

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In some case: lim x->a = f(a)

lost stirrup
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Like in c g k and p since they don’t have + or -?

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and r and s

supple rock
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Not r and s

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But yes for the other

lost stirrup
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Oh okay. What rules are for r and s then? They are different because they are infinite?

supple rock
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Yes, you can do them with the dotted lines

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It say that the curve will looking like a line at infinite

lost stirrup
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Ohh since they will never reach the dotted line the answers are correct because they will infinitely get closer but not touch the dotted line?

supple rock
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For exemple lim x->+inf =2

lost stirrup
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Like this?

supple rock
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Sorry, we must put a f(x) before =

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I forget it

lost stirrup
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Oh it’s okay

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Ohh I see it now

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Does this look alright?

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Also I’m sorry, I have to go, my tablet is dying and I am not home where my charger is. I will be back in an hour, will you still be available then to help finish this?

supple rock
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I will go to sleep i think

lost stirrup
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Oh okay, I will ask someone else then. Thanks so much for your help, I now understand this more