nreyes94 Posted March 12, 2012 Report Share Posted March 12, 2012 Parameters are the ones you find in each of your functions, they vary depending on which function you use Reply Link to post Share on other sites More sharing options...
sloank547 Posted March 16, 2012 Report Share Posted March 16, 2012 what does it mean when it asks to "discuss the implications of each of these modes in terms of population growth." Simply to compare how accurate each of them are? Reply Link to post Share on other sites More sharing options...
hi22 Posted March 21, 2012 Report Share Posted March 21, 2012 Hey! I'm working on this IA right now and I have a couple of questions I hope you guys could help me clear up. For the question: What types of functions could model the behaviour of the graph? I put the data into excel and got a 6th polynomial function to fit the best, however, the cubic function behaves more like a population would (the 6th polynomial drops at the very beginning and then goes up, which a population would not do) therefore the cubic function would be a more correct function to use...Just would like to know if I'm at least heading in the right direction with my thinking Also, for when it says "analytically develop" does that mean I have to logically explain why it would be the particular function that I chose? (kind of what I did in the first part of my post) Or does it mean something else? Thanks!!! So how did you do it in the end? Reply Link to post Share on other sites More sharing options...
gem222 Posted April 13, 2012 Report Share Posted April 13, 2012 For the question "What types of functions could model the behaviour of the graph? Explain your choices" I'm planning on using the cubic function and 6th polynomial function, would this be enough functions to use? Also how do I graph the cubic function in excel?? Please help, thank you Reply Link to post Share on other sites More sharing options...
Abid Posted April 18, 2012 Report Share Posted April 18, 2012 Has anyone used geogebra to plot the data points? If you have, how did you draw a smooth ine between all the points. I can't seem to add this on Geogebra Reply Link to post Share on other sites More sharing options...
abirkbeck9 Posted April 22, 2012 Report Share Posted April 22, 2012 I got a different one...Mine is has some of the same questions, but a different topic. Its on IB exam growth. Honestly I think the other one is better. How odd...Does anyone else have this IA? Reply Link to post Share on other sites More sharing options...
lemonade Posted August 20, 2012 Report Share Posted August 20, 2012 help!suppose i choose to develop a cubic model, how do i justify my choice? like why did i chose this particular type of function instead of say, a quadratic function modelalso, can you develop more than one model? for example if the first one doesn't fit the data points too well. Like if i first develop a linear model but then say that it isn't too accurate so i start developing another model (cubic?) or should i just develop one and stick to it Reply Link to post Share on other sites More sharing options...
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