why doesnt anyone help me:(

Question

oleg3321 · Answer

Bill is able to save $35/week after working part-time and paying his expenses. These two formulas show his weekly savings:

    f(1) = 35, f(n) = f(1) + f(n-1) for n > 1
    f(n) = 35n
        Which one of these formulas show the sequence written recursively and which shows it written explicitly? Justify your explanations.
        Use the recursive formula to make a table of values for 1 ≤ n ≤ 5. Show your calculations. Explain what your table means.
        Use any formula of your choice to find f(40). Explain why you chose that method and what your answer means. Show your calculations.
        Given the sequence of numbers: 5, 6, 8, 11, 15, 20, 26, 33, 41,… Explain whether or not this sequence can be considered a function.

ikram002p · Answer

:) :P
will help in few sec

oleg3321 · Answer

i already did the first problem but need help with the second third and fourth please

ikram002p · Answer

whats ur answer for the first ?

oleg3321 · Answer

f(n) = f(1) + f(n-1) for n>1 is the recursive formula because it requires you to find the previous term(s) , f(n-1) in order to compute f(n). f(n) = 35 n is the explicit formula because it allows you to directly plug in numbers to find values of f(n).

oleg3321 · Answer

that was for the first one @ikram002p

ikram002p · Answer

cool that was correct :) now make a table
using this formula to find f(n)
 f(1) = 35, f(n) = f(1) + f(n-1) for n > 1
|dw:1407181196752:dw|

oleg3321 · Answer

ok.then what? can you please show me he steps because ill understand like hat better @ikram002p

ikram002p · Answer

ok ill show 
f(1) =35
f(2) =f(1 ) +35 =70
f(3)=f(2)+35 =115

could u do f(4) and f(5) ?

oleg3321 · Answer

not really theres so many numbers it gets me confused. please show me how t do f(4) and f(5)

oleg3321 · Answer

@ikram002p

ikram002p · Answer

well
f(n)=f(n-1)+35
f(4)=f(3)+35=115+35=150
f(5)=f(4)+35=150+35=183

ikram002p · Answer

fill them in the table :D

oleg3321 · Answer

ok and then what do you do then

ikram002p · Answer

Use the recursive formula to make a table of values for 1 ≤ n ≤ 5. Show your calculations. Explain what your table means.


This tables shows Bill   savings in te first 5 weeks 
|dw:1407182206261:dw|

done with the second question ^^