Heidi Boulden Posted November 26, 2012 Report Share Posted November 26, 2012 (edited) It's funny that no one is answering... yep because these IAs are completely abstract and impossible without teacher guidance... which I bet most of us are experiencing a lack of guidance because the teachers themselves may secretly not understand the assignment as well.... Edited November 26, 2012 by Heidi Boulden Reply Link to post Share on other sites More sharing options...
h8ib Posted December 20, 2012 Report Share Posted December 20, 2012 I used grapher on mac and it worked great for me. I heard geogebra is great too Reply Link to post Share on other sites More sharing options...
barpelz Posted December 20, 2012 Report Share Posted December 20, 2012 (edited) Its pretty bad in terms of format and somewhat uncomplete, but if you have no clue it will sure helpGeoGebra for graphing, very good once u learn it and FREEEEE Edited December 21, 2012 by Gaby DO NOT POST CURRENT MATHS IAs ON THE FORUM! NEVER! Reply Link to post Share on other sites More sharing options...
Skywalker Posted January 22, 2013 Report Share Posted January 22, 2013 i need help... a shadow generating function for cubic polynomial is a linear function or a quadratic one? Reply Link to post Share on other sites More sharing options...
ViXen Posted January 24, 2013 Report Share Posted January 24, 2013 For Part B, where it asks you to prove the general statement, what method of proving it do they expect? Mathematical Induction? Graphing? Arithmetic? Reply Link to post Share on other sites More sharing options...
Blacksabba Posted February 8, 2013 Report Share Posted February 8, 2013 I (partially) finished the IA and I found this method helpful for quartics. I divided it into:(i) univertexed quartic functions with four complex roots(ii) multivertexed quartic functions with four complex roots (with the same height of vertices)(iii) multivertexed quartic functions with four complex roots (with different height of vertices)(iv) quartic functions with two complex roots and two real rootsI was able to solve the cases of (i) and (ii)... but that was it.The first case is VERY easy, as the shape is parabolic - like the simple Part A. Remember a ± bi ! Remember the axis of symmetry! You WILL find an answer, though it may be a little unobvious at first.The second one took me HOURS... but I drew a triangle and found a basic system of equations to obtain the roots of Y1. Draw lines between the intersections of Y1 and Y2. Eventually (after many trials) you will find a way to equate it, and an answer.I did not notice any patterns in the third case. How about everyone else?The fourth case, however, made me cry. It was absolutely PATTERNLESS. Does anyone have ideas on how to proceed? Reply Link to post Share on other sites More sharing options...
crazymaniac Posted March 2, 2013 Report Share Posted March 2, 2013 hey. could you please elaborate? what exactly do you mean for the quartics functions? @blacksabba Reply Link to post Share on other sites More sharing options...
Smita Posted April 15, 2013 Report Share Posted April 15, 2013 What can I talk about in the introduction for this portfolio? Reply Link to post Share on other sites More sharing options...
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