Give a formula for the nth term of the arithmetic sequence...

Question

anonymous · Answer

$$-1,0,1,2, . . .$$

jlg030597 · Answer

@ikram002p  @lexii1998

jlg030597 · Answer

im getting your help back

anonymous · Answer

@SolomonZelman @amistre64

anonymous · Answer

thanks.

anonymous · Answer

3 i think

anonymous · Answer

$$a_{n-1}+1=a_{n}$$ like this ?

anonymous · Answer

it in squincal order soit -1,0,1,2,3

anonymous · Answer

I think the formula is $$t_{n}= t_{1} +(n-1)_{d}$$

anonymous · Answer

the directions read, "Give a formula for the nth term of the arithmetic sequence..."

amistre64 · Answer

an = ao + d(n-1)  is the usual arithmetic formula ....

amistre64 · Answer

yeah, your t verion is fine ... but d is not a subsctipt

anonymous · Answer

I know d represents the common difference in the sequence so that would be -1?

amistre64 · Answer

d is the number we use to get from 0 to 1 ....
0 + d = 1

anonymous · Answer

So it's not the common difference?

amistre64 · Answer

-1,0,1,2,3,4,5,6

it is the common different ... between any 2 terms.

-1 + d = 0
0 + d = 1
1 + d = 2
2 + d = 3 
etc ...

amistre64 · Answer

if we use d=-1 ... we dont generate their sequence 

-1 -1 = -2
0 - 1 = -1
it just doesnt work out

anonymous · Answer

okay I see! thanks for the help... so the answer here would be $$t_{n}=n-2$$

amistre64 · Answer

that seems fair yes

amistre64 · Answer

its the set of numbers (1,2,3,4,5,...) - 2 :)