Datasets:
NationalTutoringObservatory
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MathEd-PII

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8
volunteer
So if x does not equal -2, what is f(x)?
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student
2
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volunteer
f(x) is 2 if x equals -2
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volunteer
But x equals 4 not -2
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volunteer
But x equals 4 not 2, I mean :)
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volunteer
No x equals 4 not -2, I mean. Sorry!
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volunteer
If x does not equal -2, what is f(x)?
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volunteer
I have to leave at 2:15. Just a heads up :)
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student
ok
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volunteer
Was there anything else you wanted to ask?
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student
no
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volunteer
Okay! Good work today :) This is tricky stuff
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volunteer
I hope you have a great day
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volunteer
Hello How are you?
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student
I'm fine, hru?
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volunteer
I am fine tnx how can I help?
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student
so basically we've been working with functions, limits, IVT, and etc... Now I will have a midterm about all of these we've been learning about and I need help getting all of these things in my head because I feel like I have some concepts done but then confused on the rest
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volunteer
OK How can O help?
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volunteer
I help*
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student
well, the teacher did give us 3 midterm samples and I guess we can work with that
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volunteer
OK that sounbds like a good idea
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student
alr one min
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volunteer
OK
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student
okay let's js go step by step Sarah, I wasn't able to bring every page of it yet, but I guess we can start with page 1 which this is
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[ { "pii_type": "PERSON", "surrogate": "Sarah", "start": 30, "end": 35 } ]
volunteer
OK I will copy to 2nd screen Pls wait
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volunteer
OK should we start with (a)?
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volunteer
I see that u are typing
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volunteer
Are you here?
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student
yea I'm here
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volunteer
OK
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volunteer
what do u think about the intervals of continuity?
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student
there
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volunteer
I will scroll down pls wait
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volunteer
I think these intervals should all be in terms of x values I think I see some y values instead
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student
how? I thought i did x-values?
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volunteer
I will circle
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volunteer
are those really the x vlaues that u want?
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volunteer
ok
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student
I made a mistake on 0, but isn't infinity right?
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volunteer
IMO no
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volunteer
don't we want the x-coord of the verticla dotted line?
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student
so 5?
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volunteer
yes
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student
but doesn't the continuity line go all the way up at 5? does it mean that it stays at 5?
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volunteer
Remeber the interval is *x* values
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student
okay
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volunteer
y might go to inf yes but we need x values
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student
okay next one ig
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volunteer
OK b)?
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volunteer
Good
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student
thx
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student
for this one are we gonna start by plug 3 to f(x)?
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volunteer
Hmm I think not
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student
ok
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volunteer
I think u need to ask about the lim of f(x) as x -> 3+
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student
is it 2?
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volunteer
I think so yes
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volunteer
now can u use that to answer this part?
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student
like this?
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volunteer
Yes
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volunteer
keep going
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student
ok
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volunteer
what is the vlaue of that sin?
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student
the value of that is 1
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volunteer
I disagree
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volunteer
I think sin(pi/2) = 1
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student
that's what I said
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volunteer
but you do not say sin(1)
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student
so do I just put 1?
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volunteer
well the answer is just the number 1
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student
so the whole answer is just 1? we stop there?
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volunteer
Yes
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student
sorry
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volunteer
No problem go ahead
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volunteer
Yes 1
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volunteer
Good
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volunteer
I agree
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student
do we just need to plug when the form is number over 0?
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student
plug for x*
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volunteer
well I think the lim is undefined
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volunteer
but I am 90% sure
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student
how do I get to where it tells me if it's undefined or not, do I js plug it?
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volunteer
well nbr/0 is undefined
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volunteer
so I think u can jsut say that
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volunteer
in fact in this case, I think we have 1/0
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student
wouldn't be 2/0?
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student
since 1+1^2 is 2?
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volunteer
I don't think so
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volunteer
Liam the x^2 become 0^2 ?
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[ { "pii_type": "PERSON", "surrogate": "Liam", "start": 0, "end": 4 } ]
student
well x is going to 1-
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volunteer
no
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student
where did u get the 0 from?
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volunteer
the one 1- means we are approaching +1 from the left side
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student
okay so it's js zero?
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volunteer
yes the x vlaue is jsut zeor
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volunteer
so 1 + x^2 = 1
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volunteer
OK
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volunteer
Now when I was in school (about 60 years ago) inf and undefined were the same but I am not so sure that is what they say now
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volunteer
but u need to find thtat out
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student
I think this is right
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