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Mathematics 17 Online
OpenStudy (anonymous):

For the data set shown by the table a. Create a scatter plot for the data. b.Use the scatter plot to determine whether an exponential function or a logarithmic function is the best choice for modeling the data.

OpenStudy (anonymous):

Number of homes built in a town by year Year: | Number of Homes 1985 | 12 1991 | 91 1994 | 145 1997 | 192 2002 | 244

OpenStudy (anonymous):

Please explain step by step, I've never been good at using scatter plots >.<

OpenStudy (anonymous):

hmmm i used to remember but i forgot..

OpenStudy (anonymous):

its alright then

OpenStudy (anonymous):

@ganeshie8 I''m sorry to bother you; are you busy? If not, I would appreciate your help. ^-^

ganeshie8 (ganeshie8):

think of 1985 as starting time, t = 0

ganeshie8 (ganeshie8):

then the given table beocmes : t: | Number of Homes 0| 12 6| 91 9| 145 12| 192 17| 244

ganeshie8 (ganeshie8):

lets plot these points and see what we get

OpenStudy (anonymous):

On a graph?

ganeshie8 (ganeshie8):

Yep !

ganeshie8 (ganeshie8):

ganeshie8 (ganeshie8):

look at the scatter plot ^^

ganeshie8 (ganeshie8):

how does it look ? line or an exponential curve ?

OpenStudy (anonymous):

linear

ganeshie8 (ganeshie8):

ganeshie8 (ganeshie8):

yes a line looks like a good option

ganeshie8 (ganeshie8):

oh wait, but the question was about choosing between exponential and logarithmic functions :o

OpenStudy (anonymous):

o.o what does that even mean

ganeshie8 (ganeshie8):

I am going with exponential function what do u think ?

OpenStudy (anonymous):

And what do they mean by 'modeling the data'

OpenStudy (anonymous):

hmm hold on

ganeshie8 (ganeshie8):

its just a fancy phrase of below : how does the curve that passes through all the given points look like ?

OpenStudy (anonymous):

I think it makes sense since the line is rising

OpenStudy (anonymous):

Ooooh understood

OpenStudy (anonymous):

One more question about this...sorries. For a handheld graphing calculator, hoe exactly would you get the graph and the plotted points? I tried to do it, but I got a bit lost lol >.<

OpenStudy (anonymous):

and thank you very much ♥

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