Question

Difference equations

Answer 1

need help with checking what I have

Answer 2

5 pages?

Answer 3

yes! just want to check a couple and do one

Answer 4

do you know how to do #1...need to check it

Answer 5

http://www.aw-bc.com/ggts/
Ch.12 for reference

Answer 6

linear would be degree 1 that I am aware of but let me check the material

Answer 7

I have c as linear

Answer 8

c and d are both linear

Answer 9

d is not linear...

Answer 10

its got rationals in it that make it go haywire

Answer 11

ok right was seeing y sub n as exponent in denominator not just constant : (

Answer 12

gonna graph it...confused with homo and nonhom..have a and b as homo...had c too but changed

Answer 13

if you reform d it become 1 + y^2/2y and thats just a curvey mess

Answer 14

homo or nonhomo; you gotta pick all that apply? or just one?

Answer 15

all that apply -3 parts

Answer 16

the order is the difference beteen "n"s

Answer 17

a = 2nd order

Answer 18

b,c,d are all 1st orders

Answer 19

got that one...b-2 c- 1

Answer 20

b = n, n+1 .... a difference of 1; 1st order

Answer 21

ok gotcha

Answer 22

a = hom, its got a zero on the right hand side :)

Answer 23

understand that

Answer 24

looked at wrong checks only had a as homo just wanted to check that

Answer 25

i think only d is nonhomo

Answer 26

homogeneity aint my strength lol..... i guess you just need an eye for it.

Answer 27

don't understand other property other than =0 to make it hom...

Answer 28

LOL!

Answer 29

I have 2a need 2b

Answer 30

i'll try and figure2-4...how about 5 got 6 ...loved that one

Answer 31

you need 5?

Answer 32

i as trying to determine what a "complete" solution meant :)

Answer 33

yes

Answer 34

ok that is cool ; )

Answer 35

didn't want to weigh you down...

Answer 36

B(n+1) = ....

Answer 37

what level mathis this stuff anyways :)

Answer 38

B(n+1) = (.06)Bn - 25,000...so far

Answer 39

Precalculus...real-world

Answer 40

B(n+1) = (.06)Bn - 25,000(.03)n-1

Answer 41

pre calc real world eh...... you must be going to harvard or something lol

Answer 42

thats almost right in the equation...

Answer 43

i know right...UIUC in Illinois...sad part is 1-credit math module not even full course..smh

Answer 44

any idea how to get the 25000 to start at (times 1) :)

Bn+1 = (.06)Bn - 25,000(.03)

Answer 45

B(n+1) = (.06)Bn - 25,000(1+.03).....

Answer 46

B(n+1) = (.06)Bn - 25,000 + 25,000(.03)^n something like this

Answer 47

B(n+1) = (.06)Bn -25,000(1.03)^(n-1)

Answer 48

http://www.docstoc.com/docs/18298713/Planning-for-retirement

Answer 49

i got it....im sure I do :)

Answer 50

its pretty much a loan in a loan....

Answer 51

at B0; n=0

Answer 52

n=1 lol....thats it :)

Answer 53

I got the balance increaseing at .06 each time; then subtract that 25000(+.03 for interest) for the next few years

Answer 54

you agree?

Answer 55

I'm pluggin in calc. and I'm missing something

Answer 56

B(n+1) = (.06)Bn -25,000(1.03)^(n-1)

the first year we need a "0" to make that (1.03) = 1

Answer 57

\[B_{n+1}=(.06)B_{n} - 25000(1.03)^{n-1}\]

Answer 58

de we start this from n=0 or n=1?

Answer 59

got that let me keep trying

Answer 60

0

Answer 61

for the power we need n =1 so 1-1=0 and anything to 0 power is 1

Answer 62

correct

Answer 63

im writing it into a program :)

Answer 64

neat....iterations inputed one at a time? not working

Answer 65

havent programed it ALL yet lol..let me give this a test run

Answer 66

getting warmer :)

Answer 67

it should be 1.06 ...not .06

Answer 68

no....thats aint it ...

Answer 69

292, 250 for n=1

Answer 70

B+B(.06) = B(1.06)

Answer 71

Balance + 6% :)

Answer 72

293,000 should be it

Answer 73

300000(1.06)-25000 = 293000

Answer 74

this is it ;)

Answer 75

forogt to change the "dressing" to 1.06 lol

Answer 76

its good to go ;)

Answer 77

itll last 15 years :)

Answer 78

programming I can do ;)

Answer 79

html and javascript, we can do so much together :)

Answer 80

that is Awesome...learned a lilt programming-html but you are GREAT

Answer 81

taught meself that too ;)

Answer 82

never thought to use it...just the calc...thanks!

Answer 83

libraries shuttin down, good luck with the rest of it :)

Answer 84

ok thanks...what state are you in

Answer 85

florida ;)

Answer 86

Cool! just moved to IL from SC...ttyl