Matsu Posted February 29, 2012 Report Share Posted February 29, 2012 i got the general statement for the numerator but how would u find the gs for the denominator if it is not contant....eg. the denominators in row 5 are 11 9 9 11...smbdy pls help! Oh and don't forget to read the earlier posts, a lot of them were very helpful Reply Link to post Share on other sites More sharing options...
mankaa Posted March 1, 2012 Report Share Posted March 1, 2012 how can we find the general for En® Reply Link to post Share on other sites More sharing options...
juliozev Posted March 2, 2012 Report Share Posted March 2, 2012 hey everyone. im pretty sure i got my general statement down. im just debating that when i generate my graphs, such as row # and numerator, should i connect the dots? i was pretty sure i shouldn't since these are term numbers and they had to be discrete, since you cannot have term lets say 2.5. i just want to make sure. Reply Link to post Share on other sites More sharing options...
LMaxwell Posted March 2, 2012 Report Share Posted March 2, 2012 hey everyone. im pretty sure i got my general statement down. im just debating that when i generate my graphs, such as row # and numerator, should i connect the dots? i was pretty sure i shouldn't since these are term numbers and they had to be discrete, since you cannot have term lets say 2.5. i just want to make sure.That's up to you to decide. Reply Link to post Share on other sites More sharing options...
elephantsrus Posted March 3, 2012 Report Share Posted March 3, 2012 everyone is using quadratic regression but how is it known that the general statement is a quadratic? it could be working for a quadratic regression because it is just a part of a cubic or quartic or greater type of function. Because the values increase and decrease in a parabolic fashion. Basically, it's only increasing and decreasing once no matter what row you compute it for (even based on things like noticing the patterns of how everything adds up). If it did something like decrease, then increase, then decrease again it would be cubic, etc etc. i got the general statement for the numerator but how would u find the gs for the denominator if it is not contant....eg. the denominators in row 5 are 11 9 9 11...smbdy pls help! Try using systems of equations. Me and a lot of my friends used it for this IA and quite a few of us got 7's haha.For your post responding to me, it does look like a parabola but it could easily be part of a polynomial or a different type of function Reply Link to post Share on other sites More sharing options...
noemietremblay Posted March 4, 2012 Report Share Posted March 4, 2012 Thank you so much for your help! I don't know if I have exactly the same portfolio as you because mine is in french and some of the criteria in my assessment is not exactly the same but they require that I "demonstrate with a summation the formula found with the technology". I have the formula and all but I don't know how to "demonstrate with a summation". We are not studying that in class yet so... I'm kinda lost How do we do that? Reply Link to post Share on other sites More sharing options...
Theory Posted March 7, 2012 Report Share Posted March 7, 2012 Well, I must say this thread helped me a lot! Seriously, a huge thank you to those who helped out replying to all of the threads! Thank you , thank you, thank you and thank you! I'm a newbie so I don't really know how to tag someone in this post but...Desy Glau! Thanks for all the tips, I admire your paitience ^^ Reply Link to post Share on other sites More sharing options...
kali Posted March 7, 2012 Report Share Posted March 7, 2012 GUYS, i need help! im also given the same portfolio and i have difficulty in figuring out the trend! please help me out! its the Lacsap's fraction Reply Link to post Share on other sites More sharing options...
teboho sefuthi Posted March 7, 2012 Report Share Posted March 7, 2012 (edited) can somebody help me with this LACSAP's fractions! please!1.pdfplease have a look at that attachment! Edited March 7, 2012 by teboho sefuthi Reply Link to post Share on other sites More sharing options...
Mamello Jonathan Posted March 8, 2012 Report Share Posted March 8, 2012 WOW NEH!!!IM NEW gues im a bit late to comment on it, Reply Link to post Share on other sites More sharing options...
Karen Alejandra Posted March 10, 2012 Report Share Posted March 10, 2012 Hii I'm also having the same assigment, and I would like to know if somebody found some limitations/restrictions of the general statement Reply Link to post Share on other sites More sharing options...
El Che Posted March 10, 2012 Report Share Posted March 10, 2012 It basically asks for which for what values of r and n the general statement would not work. Consider this: Can r and n be negative, rational/irrational, real numbers?I think this should answer your question. =) Reply Link to post Share on other sites More sharing options...
Reso Posted March 12, 2012 Report Share Posted March 12, 2012 When I QuadReg after plotting 2,3,7,11,16 against 2,3,4,5,6 my equation comes to something like y= -.0095216645x^2 + .4352312955 + 1.441198019 is this on the right track or no? I can't see that being correct Reply Link to post Share on other sites More sharing options...
teboho sefuthi Posted March 12, 2012 Report Share Posted March 12, 2012 no they cant be negative! Reply Link to post Share on other sites More sharing options...
bsabin0410 Posted March 15, 2012 Report Share Posted March 15, 2012 I'm doing this assessment in my math class this year and I'm stuck on the write up! I don't know how to write about my process or write an introduction or conclusion. If anyone has any useful tips or an example of a written assessment, that would be awesome! Reply Link to post Share on other sites More sharing options...
dicksoneliza Posted March 15, 2012 Report Share Posted March 15, 2012 Just elaborate on EVERYTHING. Every step you take, include it. Reply Link to post Share on other sites More sharing options...
robbydobby Posted March 16, 2012 Report Share Posted March 16, 2012 I cant believe i am in precalc and i forgot how to find the slope of a quadratic graph but could you please remind me. i know it is ax^2 + bx + c. but what is a,b,and c? the row number is on the x axis and the numerator in each consecutive row is the y axis so how do i derive a formula off of this information? I know its (r + 1) triangular numbers. also i have the formula from other sources, i just want to understand how to get it. why do you divide it by two that's what gets me. This would be better if i could just right the formula out but i cant do that can i? could you please guide me? Reply Link to post Share on other sites More sharing options...
GodLike555 Posted March 16, 2012 Report Share Posted March 16, 2012 (edited) I have a HUGE problem. What does En( r ) stand for? What is r in the 1st place? Edited March 16, 2012 by GodLike555 Reply Link to post Share on other sites More sharing options...
robbydobby Posted March 16, 2012 Report Share Posted March 16, 2012 one more question the slope of the graph should get me the general statement for the numerator right? and the general statement is just a fancy word for formula? how do i find the slope? its N = n^2 + n/2 but why is that over two their??? please help im sure i can figure it out with guidance Reply Link to post Share on other sites More sharing options...
robbydobby Posted March 16, 2012 Report Share Posted March 16, 2012 one more question the slope of the graph should get me the general statement for the numerator right? and the general statement is just a fancy word for formula? how do i find the slope? its N = n^2 + n/2 but why is that over two their??? please help im sure i can figure it out with guidance Reply Link to post Share on other sites More sharing options...
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