kimizara Posted May 31, 2008 Report Share Posted May 31, 2008 Can anyone help me with the parabola investigation? I am stuck in number 5 and 6. Thanks!Sl=x1-x2Sr=x3-x4D= abs( Sl-Sr)5.Determine whether a similar conjecture can be made for cubic polynomials6. Consider whether the conjecture might be modified to include higher order polynomials.it's abs(-1/a) not abs(1/a) pplz Reply Link to post Share on other sites More sharing options...
jbhasin Posted May 31, 2008 Report Share Posted May 31, 2008 Hint: That isn't the whole conjecturejbhasin 1 Reply Link to post Share on other sites More sharing options...
streetgospels Posted June 1, 2008 Report Share Posted June 1, 2008 If you experiment with more lines and your parabola, you find that the conjecture is actually more general than D= (-1/x)...I REALLLY NEEED HELP WITH 5 ...and 6 I guess although i haven't even begun to consider it yetmy portfolio is due on monday (2 days)I realize that D=0, and that can be found by doing (x6-x4-x2)-(x5-x3-x1)but i don't know if that's the only way, or even the right wayand i can't really figure out what the conjecture would beis it just always zero as long as SL and SR are present...i figured out that SM doesn't work out on its own, but as long as you have the intercepts for SL and SR you get zero i just need help, or for someone to tell me if i'm at all on the right track Reply Link to post Share on other sites More sharing options...
Agneisse Posted June 6, 2008 Report Share Posted June 6, 2008 Same here - So D=0, but so what? What do you do from there? Reply Link to post Share on other sites More sharing options...
ibnight Posted June 9, 2008 Report Share Posted June 9, 2008 I am also stuck in q5 and q6 and need help asap Reply Link to post Share on other sites More sharing options...
Forester Posted June 14, 2008 Report Share Posted June 14, 2008 how do you guys draw the graphs on word? Is there another program to do it? Reply Link to post Share on other sites More sharing options...
Agneisse Posted June 15, 2008 Report Share Posted June 15, 2008 http://my.hrw.com/math06_07/nsmedia/tools/.../graphCalc.htmlI just used this and took screenshots. Reply Link to post Share on other sites More sharing options...
Forester Posted June 15, 2008 Report Share Posted June 15, 2008 thank you so much!!!any other alternatives to make graphs on word?Also some guidance on 5 and 6? where to start? Reply Link to post Share on other sites More sharing options...
yodude888 Posted June 23, 2008 Report Share Posted June 23, 2008 Use autograph to draw the graphs, then just copy paste the graph into Word. Reply Link to post Share on other sites More sharing options...
ET109 Posted June 29, 2008 Report Share Posted June 29, 2008 ok im pretty sure i got everything right up to question 4. ... jbhasin... u seem to know what your are talking about...could you just define the new value of D for use please for polynomials of the third degree. Is it (x3-x2-x1)-(x6-x5-x4) or more like (x2-x1)-(x4-x2)-(x6-x5). What do you do with the extra two coordinates you get everytime the degree of the polynomial increases by 1? Reply Link to post Share on other sites More sharing options...
caseyhardy Posted July 25, 2008 Report Share Posted July 25, 2008 What's the difference between Q2 and Q3?The question state that 'Consider various values of a'...So does that mean that we need to make the vertex constant?So if that's so, wouldn't the graph would only get smaller and smaller?And in Q3, what's the difference between investigate and refine?O, yes, another one, in Q3, do we need to change the vertex values as well?real desperate right now.... Reply Link to post Share on other sites More sharing options...
fatiyne Posted July 26, 2008 Report Share Posted July 26, 2008 i'm doing this type as well...i read the question before...n i was told that we have to do it writtenly by hands..typing is not allowed...how bout u guys...?fatiynemalaysiamath hlphy hlecons hlbm a1eng bbus sl Reply Link to post Share on other sites More sharing options...
wits Posted August 1, 2008 Report Share Posted August 1, 2008 ok im pretty sure i got everything right up to question 4. ... jbhasin... u seem to know what your are talking about...could you just define the new value of D for use please for polynomials of the third degree. Is it (x3-x2-x1)-(x6-x5-x4) or more like (x2-x1)-(x4-x2)-(x6-x5). What do you do with the extra two coordinates you get everytime the degree of the polynomial increases by 1?yeah... i'm stuck with the same problem..there will be 6 points of intersection. so can anyone define D????? =(( Reply Link to post Share on other sites More sharing options...
julian_r_p Posted August 27, 2008 Report Share Posted August 27, 2008 i'm doing this type as well...i read the question before...n i was told that we have to do it writtenly by hands..typing is not allowed...how bout u guys...?first of all, you can type it ... mine ended up being huge ... forgot how many pages but well over 20my conjecture sort of died at the end as i concluded that it was different for even and odd order polynomials and then for some reason i screwed up and my system for subtracting changed halfway .. . still ... i did welli got 18/20 on mine, but the IB hasnt released the actual answers yet so our teacher just gave us a prelim. mark Reply Link to post Share on other sites More sharing options...
oec0710 Posted September 1, 2008 Report Share Posted September 1, 2008 anybody can help me with this portfolio i have no idea how to do it, and i'm so lost and my deadline is getting close Reply Link to post Share on other sites More sharing options...
dkssudgktlqslRk123 Posted September 3, 2008 Report Share Posted September 3, 2008 People...I need help with the IA! Could you help me with number 5, which deals with the relatinship between the quadratic function and y = mx, y=nx? Reply Link to post Share on other sites More sharing options...
Realistic-Nonsense Posted September 6, 2008 Report Share Posted September 6, 2008 does it matter whether its abs(1/a) or abs(-1/a)?cause i find the answer will still be a positive number right? Reply Link to post Share on other sites More sharing options...
Gilly Posted September 7, 2008 Report Share Posted September 7, 2008 What were the actual questions to this? Do you have the full sheet of questions, it would be easier to assist from there... Reply Link to post Share on other sites More sharing options...
deissi Posted September 8, 2008 Report Share Posted September 8, 2008 What were the actual questions to this? Do you have the full sheet of questions, it would be easier to assist from there...please don't post them here, they're copyright of IBO. Reply Link to post Share on other sites More sharing options...
ninja1215 Posted September 22, 2008 Report Share Posted September 22, 2008 hi can sm1 snd me the full question for task 3 to task 6..i misplaced my question sheet-_-thank you Reply Link to post Share on other sites More sharing options...
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