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Mathematics 13 Online
OpenStudy (ttp):

Almost dome

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

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

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

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

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

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

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 ?

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

OpenStudy (triciaal):

or still exponential because of the first 2 additional points

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