# robbydobby

Members

18

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## Profile Information

• Gender
Male
• Exams
May 2013
• Country
United States
1. ## IA Type I - Lacsap's Fractions

its nor simple lol well it is but i just cant get it. i wrote it as decimals too. r b 1 -o.5 2 -1.5 3 -2.5 4 -3.5 i know i see the pattern i cannot generalize this so far i got this equation for the denominator 1/2 n^2 + b(n) + r^2 just need b close but no cigar please help me. untill i get this i fear that i will be doing bad in all my classes, i just focus on generalizing this and its making me so mad. wait tell me if this is right. is the relationship -r + 1/2 for be it looks right!!!!! holy crap it works thanks so much i love you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2. ## IA Type I - Lacsap's Fractions

its nor simple lol well it is but i just cant get it. i wrote it as decimals too. r b 1 -o.5 2 -1.5 3 -2.5 4 -3.5 i know i see the pattern i cannot generalize this so far i got this equation for the denominator 1/2 n^2 + b(n) + r^2 just need b close but no cigar please help me. untill i get this i fear that i will be doing bad in all my classes, i just focus on generalizing this and its making me so mad. wait tell me if this is right. is the relationship -r + 1/2 for be it looks right!!!!!
3. ## IA Type I - Lacsap's Fractions

its nor simple lol well it is but i just cant get it. i wrote it as decimals too. r b 1 -o.5 2 -1.5 3 -2.5 4 -3.5 i know i see the pattern i cannot generalize this so far i got this equation for the denominator 1/2 n^2 + b(n) + r^2 just need b close but no cigar please help me. untill i get this i fear that i will be doing bad in all my classes, i just focus on generalizing this and its making me so mad.
4. ## IA Type I - Lacsap's Fractions

why does n start from 2 when r = 1 shouldnt it start from row 1 because the second 1 is actually a 1/1????? dude, robby, i have no ****ing clue either, did u see what i wrote to u earlier? check post #459, and quote me on it so i can see it. thanks manram, i have no clue ethier, like i agreed, finding answer is easy, but coming up with GS is hard. ive got the pattern a remains at 1/2 be goes from (-1/2) - 1 each element and c goes from 1,3,9.... idk wtf to do know lmfao please im so close to the GS desy if you could please come out of hiding and help us im sure we all would be very greatf
5. ## IA Type I - Lacsap's Fractions

why does n start from 2 when r = 1 shouldnt it start from row 1 because the second 1 is actually a 1/1????? dude, robby, i have no ****ing clue either, did u see what i wrote to u earlier? check post #459, and quote me on it so i can see it. thanks manram, i have no clue ethier, like i agreed, finding answer is easy, but coming up with GS is hard. ive got the pattern a remains at 1/2 be goes from (-1/2) - 1 each element and c goes from 1,3,9.... idk wtf to do know lmfao please im so close to the GS desy if you could please come out of hiding and help us im sure we all would be very greatf
6. ## IA Type I - Lacsap's Fractions

why does n start from 2 when r = 1 shouldnt it start from row 1 because the second 1 is actually a 1/1????? dude, robby, i have no ****ing clue either, did u see what i wrote to u earlier? check post #459, and quote me on it so i can see it. thanks manram, i have no clue ethier, like i agreed, finding answer is easy, but coming up with GS is hard. ive got the pattern a remains at 1/2 be goes from (-1/2) - 1 each element and c goes from 1,3,9.... idk wtf to do know lmfao
7. ## IA Type I - Lacsap's Fractions

dude i tried his way and i got a pattern kinda its really hard to generalize though... My way is simple and it got the right answer as well so idk??? ima keep working on his way though. IF you are doing my way rememeber what makes a number equal to 1. the 0th element does count.. say all the emelements in row 3. (0,1,2,3) and denominators are (6,4,4,6) you get a nice parabola (same equation as quadratic). idk ima keep working on his way though :/
8. ## IA Type I - Lacsap's Fractions

why does n start from 2 when r = 1 shouldnt it start from row 1 because the second 1 is actually a 1/1?????
9. ## IA Type I - Lacsap's Fractions

ima help you out bro i got the gs for the denominator from a friend i just want to know how to get it i just copied it down but the GS is y = r^2 -nr + gs for numerator give you the gs n^2/2 + n/2 / r^n - nr + n^2/2 + n/2 thats for any number on the triangle.... i need to know how to get that and i dont have a graphing calculator and that guy isnt helping us . but maybe that will help you? i got 2 more weeks good luck man. p.s i typed in math toutor and the city i lived in google and toutors came up im going to try to get one for this portfolio. ok, so check it robby http://www.facebook.com/
10. ## IA Type I - Lacsap's Fractions

ima help you out bro i got the gs for the denominator from a friend i just want to know how to get it i just copied it down but the GS is y = r^2 -nr + gs for numerator give you the gs n^2/2 + n/2 / r^n - nr + n^2/2 + n/2 thats for any number on the triangle.... i need to know how to get that and i dont have a graphing calculator and that guy isnt helping us . but maybe that will help you? i got 2 more weeks good luck man. p.s i typed in math toutor and the city i lived in google and toutors came up im going to try to get one for this portfolio.
11. ## IA Type I - Lacsap's Fractions

so i get that (3/2) is the 1st element, but how would we show that. Like, what would we call that --> r2? ONE more question, how amny graphs, i know its asking for the relation, but does that mean 1 graph for every row? or just 1 graph total??? no you would call that r1. i did 1 graph with 3 diff rows (3 graphs in one) but idk how to get a GS from that man im just as lost as you. How did you get a GS for the numerator did you use the arithmetic sequence formula or did you use the quadratic graph formula. im so confused and nobody is helping. its rediculus how does the arithmetic formu
12. ## IA Type I - Lacsap's Fractions

r is the element in each row. n is the row number. i got no idea what En® is though lol. so examples 1 1 1 3/2 1 see that 3/2 that is the 1st element in the 2cnd row. for some reason the ones dont count as an element so 3/2 is the first element
13. ## IA Type I - Lacsap's Fractions

ok of done a lot of work and spent many hours trying to come up with an equation for the denominator but i just cant . i feel like i am extremely close every method i try though. for example by using 3 points of the graph when r = 1 i used the substitution method to come up with a = 1/2 b = 1/2 and c = 1 when r = 2 i got a = 1/2 b = ~1.5 c = 3 and when r = 3 i got a = 1/2 b = ~2.5 c = 9. that gives me 3 equations but i feel i messed up because b jumped down 2 intead of 1 from r = 1 to r = 2. and c went from 3 to 9? should c be strictly triangular numbers. please help me i dont know any
14. ## IA Type I - Lacsap's Fractions

ibscrewed im no expert but from all of the posts that i have read there are multiple ways to find the GS, the easiest is graphing, you don't "need" to find it algebriaclly but if you want to put it in your portfolio it will do no harm as long as you explain it correctly.
15. ## IA Type I - Lacsap's Fractions

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