(nimsy) how is b) 0? | Denizen and Citizens | Page 1

narrow zenith Mar 28, 2023, 6:46 AM

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molten idolBOT Mar 28, 2023, 6:46 AM

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(nimsy) how is b) 0?

molten idolBOT Mar 28, 2023, 6:46 AM

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narrow zenith title

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narrow zenith Mar 28, 2023, 7:00 AM

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whatever, it's too late for this

ancient lagoonBOT Mar 28, 2023, 7:01 AM

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Resolved

Thread closed as resolved.

placid epoch Mar 28, 2023, 7:50 AM

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There’s a discontinuity at c

ancient lagoonBOT Mar 28, 2023, 7:50 AM

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Thread Reopened

Thread was manually reopened by @placid epoch.

placid epoch Mar 28, 2023, 7:51 AM

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@narrow zenith

narrow zenith Mar 28, 2023, 7:51 AM

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i already solved it dw

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i was being dumb as usual

placid epoch Mar 28, 2023, 7:51 AM

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Well, you asked

narrow zenith Mar 28, 2023, 7:51 AM

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thanks tho

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on a side note

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im having a little trouble understanding this

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specifically,

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where i circled

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i thought left circle was supposed to be an empty circle

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as for the right circle, i have no clue why it's there

placid epoch Mar 28, 2023, 7:53 AM

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Yeah, the wording suggests that there should be a discontinuity at -3

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At X=0 they show you the removable discontinuity

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There’s a dot at 3/2 as in the question

narrow zenith Mar 28, 2023, 7:53 AM

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nono the graph is the answer

placid epoch Mar 28, 2023, 7:53 AM

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So at x=0 the function is at 3/2

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Yea I know

narrow zenith Mar 28, 2023, 7:54 AM

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(or rather, supposed to be)

placid epoch Mar 28, 2023, 7:54 AM

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So the empty circle at X=0 is showin you the discontinuity

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It’s defined to be3/2

narrow zenith Mar 28, 2023, 7:54 AM

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placid epoch So at x=0 the function is at 3/2

yea but im confused because at x = 0, 3/2 is not a discontinuity

placid epoch Mar 28, 2023, 7:54 AM

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It is, the function is not continuous

narrow zenith Mar 28, 2023, 7:55 AM

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oh hang on, that makes sense

placid epoch Mar 28, 2023, 7:55 AM

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It goes from -1 roughly to 3/2

narrow zenith Mar 28, 2023, 7:55 AM

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yeye i got it

placid epoch Mar 28, 2023, 7:55 AM

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Just at X=0

narrow zenith Mar 28, 2023, 7:55 AM

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it moved up

placid epoch Mar 28, 2023, 7:55 AM

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Yes

narrow zenith Mar 28, 2023, 7:55 AM

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how about the red circle on the left?

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it just cuts out

placid epoch Mar 28, 2023, 7:56 AM

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Hm, well maybe they’re suggesting that the function is defined at y=-1 and is only discontinuous at the left side

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But i think that’s not a good way of demonstrating that

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If you drew a circle at the left you suggest a undefined portion

narrow zenith Mar 28, 2023, 7:56 AM

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but it mentions that f is -1 as x aproaches -3 from the right side

placid epoch Mar 28, 2023, 7:57 AM

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Yes, the circle specifically is a notation specific thing

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I think it’s confusing, to me it reads like there would be a discontinuity at both sides

narrow zenith Mar 28, 2023, 7:57 AM

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so shouldn't it be a full circle on the right side?

placid epoch Mar 28, 2023, 7:57 AM

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Yes

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Imo

narrow zenith Mar 28, 2023, 7:57 AM

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ah ic

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tyty

placid epoch Mar 28, 2023, 7:57 AM

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But it’s not defined

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And the question doesn’t tell you

narrow zenith Mar 28, 2023, 7:58 AM

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i have a big exam tomorrow im preparing for 😭

placid epoch Mar 28, 2023, 7:58 AM

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So really you could put whatever on the left circle and I would mark it right

narrow zenith Mar 28, 2023, 7:58 AM

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narrow zenith i have a big exam tomorrow im preparing for 😭

it's mostly derivatives, differentials, related rates, and only a little bit of limits like this

placid epoch Mar 28, 2023, 7:58 AM

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But the question should say where the function is defined at that point

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Like for X=0

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Yeah, high school stuff

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It’ll be fine

narrow zenith Mar 28, 2023, 8:00 AM

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im in college 💀

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these are the first two chapters

placid epoch Mar 28, 2023, 8:00 AM

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Well, early college then

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It gets harder

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Haha

narrow zenith Mar 28, 2023, 8:00 AM

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ye

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but imma keep it a buck i have no clue what differentials are yet lol

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ill probs study about it a bit before the exam tomororw

placid epoch Mar 28, 2023, 8:00 AM

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I’m sure you’ve heard of rate of change

narrow zenith Mar 28, 2023, 8:00 AM

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oh right

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delta y over delta x

placid epoch Mar 28, 2023, 8:01 AM

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You’re breaking the curve up into steps

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And creating a function for the change in step height

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(Or delta)

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How is delta y changing with respect to delta x

narrow zenith Mar 28, 2023, 8:03 AM

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ill do all that stuff tomorrow

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been studying for a hot min now lol

placid epoch Mar 28, 2023, 8:09 AM

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Hmm well it’s probably better to start studying earlier

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If you want to finish your degree

#(nimsy) how is b) 0?