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anonymous
 one year ago
I really don't know how to solve this problem. Can someone please guide me through it?
http://i.imgur.com/v1gzD57.png
anonymous
 one year ago
I really don't know how to solve this problem. Can someone please guide me through it? http://i.imgur.com/v1gzD57.png

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2What are we doing to the first term to get the second term? if you aren't sure, solve the following for d 7 + d = 4

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2ie subtracting 3 each time

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.27  3 = 4 4  3 = 1 1  3 = 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0then 5, then 8 right?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2in general, to get the next term f(n+1) you subtract 3 from the nth term f(n+1) = f(n)  3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2yeah and it goes on forever

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So it would be option C: f(1) = 7, f(n + 1) = f(n)  4; for n ≥ 1

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436759995533:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2f(1) = 7 is given to us to find f(2) we subtract off 3 or we use the formula f(n+1) = f(n)  3 f(n+1) = f(n)  3 f(1+1) = f(1)  3 ... replace each n with 1 f(2) = 7  3 f(2) = 4

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2you'll do that for n = 2, n = 3, etc

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I still think it's option C

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2no we aren't subtracting 4 each time

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't get this at all then

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2f(1) is the first term f(2) is the second term f(3) is the third term etc etc in general, the nth term is f(n). We replace n with whole numbers like n = 5 or n = 6

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2jumping from 7 to 4, then to 1, etc means we subtract 3 each time in general we have the nth term f(n) subtract off 3 f(n)  3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2that gives the term right after the nth term, the f(n+1) term which is why f(n+1) = f(n)  3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2look at f(n+1) = f(n)  3 what happens when you replace every n with say n = 3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0All I did was substitute 'n' with 3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2saying "f(3)  3" means "take the third term and subtract off 3" the third term is 1 so f(3)  3 = 1  3 = 2 which gives us the fourth term f(4)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ehh I give up on this. I'll just guess the answer because I'm still as confused as I was in the beginning. I'm sorry for completely wasting your time :/ Thank you very much though.

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.2do you see how f(n) is the nth term?
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