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OpenStudy (triciaal):
?
OpenStudy (ttp):
OpenStudy (ttp):
@triciaal
OpenStudy (xapproachesinfinity):
looks like an exponential model to me
OpenStudy (xapproachesinfinity):
to more we go picking bigger x values the more the graph gets closer to 0 be never zero
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OpenStudy (xapproachesinfinity):
well what is an exponential function?
OpenStudy (xapproachesinfinity):
the first dots look like a straight line but i think the given points determine to us
more about the data
OpenStudy (xapproachesinfinity):
why b
OpenStudy (xapproachesinfinity):
i don't see the data fitting a parallel line lol
OpenStudy (xapproachesinfinity):
nope
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OpenStudy (usukidoll):
I eat slugs for breakfast
OpenStudy (xapproachesinfinity):
|dw:1422592764916:dw|
do you see the data forming something like this
OpenStudy (ttp):
so we can ellimante all the choices with a parallel line right?
OpenStudy (xapproachesinfinity):
yes!
OpenStudy (xapproachesinfinity):
this scatter is nothing about parallel lines
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OpenStudy (ttp):
so it's not b or d.
OpenStudy (xapproachesinfinity):
yup those are bad choices
OpenStudy (xapproachesinfinity):
runnin' out of battery lol
OpenStudy (xapproachesinfinity):
i didn't say that
OpenStudy (xapproachesinfinity):
i said it is and exponential decay
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OpenStudy (triciaal):
hint as x increases there is only one value for y
OpenStudy (xapproachesinfinity):
back lol
so you know nothing about exponential decay?
OpenStudy (xapproachesinfinity):
go to your notes :)
OpenStudy (xapproachesinfinity):
|dw:1422593091140:dw|
the graph seems to be doing something like this
OpenStudy (xapproachesinfinity):
does that look familiar to you
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OpenStudy (ttp):
looks like exponiental which I s quantity is subject to exponential decay if it decreases at a rate proportional to its current value. Symbolically, this process can be expressed by the following differential equation, where N is the quantity and λ (lambda) is a positive rate called the exponential decay constant
OpenStudy (ttp):
that's what notes say :)
OpenStudy (xapproachesinfinity):
hahaha that's a bad notes :(
do we agree that this an exponential graph?
OpenStudy (ttp):
yes I agree.
OpenStudy (xapproachesinfinity):
|dw:1422593349315:dw|
should look like this the first drawing was bad hehhe
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OpenStudy (ttp):
so option c?
OpenStudy (xapproachesinfinity):
well yes! but did you understand why
OpenStudy (ttp):
your drawings make it very clear lol :)
OpenStudy (xapproachesinfinity):
that's the point i was trying to make
OpenStudy (xapproachesinfinity):
ok let me ask you what is and exponential function ?
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OpenStudy (xapproachesinfinity):
how is it written
OpenStudy (ttp):
a function that is defined by an exponential expression and written using function notation, and the variable is an exponent; example, f(x) = ab^x
OpenStudy (xapproachesinfinity):
yes
OpenStudy (triciaal):
@xapproachesinfinity why not a? based on the way the question is worded
OpenStudy (triciaal):
agree exponential function
agree with addition the graph will be a line y = 0.2
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OpenStudy (triciaal):
or still exponential because of the first 2 additional points