an= a1 + (n-1 ) x D

so let's say I want to find
y=2x + 5
x |0 | 1| 2|3|4|5|
y | 5| 7| 9| 11| 15|

I want to find the 15th place of y when X is +5

so after i plug in
A15= +5(which is the first number in the sequence) (15 - 1, since it is always one less than the value of the number) what is the difference?

Question

an= a1 + (n-1 ) x D

so let's say I want to find
y=2x + 5
  x |0 | 1| 2|3|4|5|
  y | 5| 7| 9| 11| 15|

I want to find the 15th place of y when X is +5

so after i plug in 
A15= +5(which is the first number in the sequence) (15 - 1, since it is always one less than the value of the number)  what is the difference?

anonymous · Answer

I see the difference as being 2, I'm not sure because I've seen other with the difference as being 8.

loser66 · Answer

what do you mean by "I've seen other with the difference as being 8"?

anonymous · Answer

someone else had a difference answer, for the difference, I don't see how, because it only goes up by 2, and am i correct to assume that is the diffrence between the numbers?

anonymous · Answer

is 2

loser66 · Answer

yes, you are. the difference d =2

anonymous · Answer

Thanks I always think that I might have it wrong so i like to double check. Cheers!

loser66 · Answer

yw