Question

finding the equation of a polynomial function from table of values....

Answer 1

so is it true that my function will start from y = 12x^3???? because my third difference is constant with a leading coefficient of 12

Answer 2

hmmm hmmm hmmm

Answer 3

is this ... finances or ...hmmm some specific math
because math wise, I'd just do a regression to get it =)

Answer 4

precalculus

Answer 5

they are asking for the function in standard form... y = ax +bx + c form

Answer 6

squared

Answer 7

right... a regression would get the equation, cubic or trig or quadraic or quartic

Answer 8

ok i didn't know that

Answer 9

quadratic even =)

Answer 10

lol

Answer 11

though, hmm got a TI calculator? I mean, it'd a iterative process, so many scientific calculators have such feature

Answer 12

no sowee i don't own a ti calculator

Answer 13

but am i on the right track tho??

Answer 14

i think so...

Answer 15

hmmm dunno, never did that myself :)

Answer 16

LOL

Answer 17

yeah i need someone who could show me the proper steps to this... cuz am typign my retricenment and i want ful marks for my work

Answer 18

http://polynomialregression.drque.net/online.php <----

enter your "x" and "y" values columns separated by [tab] and rows with [enter]
so

3 [tab] 5 [enter]
4 [tab] 56 [enter]
..... :)

Answer 19

do you happen to have an Android phone or tablet? btw

Answer 20

no my mom took my phone 2 days ago... long story..aawnnX(

Answer 21

hmmm ok.... well aehmm heheh
there's an android app, "andie graph", that runs a TI emulator, and you can get the roms online, thus you'd have 1 or even 4 TI calculators :)

Answer 22

and the TI's do have a regression feature :) hehe, among many other things

Answer 23

ok...so what do i do now...i can't even plugin my table of values in that thing you sent me... wait let me try again

Answer 24

notice the "column separator" is set to \t, meaning a tab, you can change it to whatever else though

and also notice the "row separator", it's set to \n, meaning [enter] or newline, but you can set it to whatever, though \n is fine

then enter your values

Answer 25

also notice the pulldow list below, pick the proper regression, so, use Cubic in this case, since you suspect is a cubic one

Answer 26

so if my table of values is...wait let me draw