Find a formula for a_n?for the arithmetic sequence. ? A₁ = 0,d = - $\frac { 6 } { 7 }$ ? A)a_n?= $\frac { 6 } { 7 }$ n - $\frac { 6 } { 7 }$ B)a_n?= - $\frac { 7 } { 6 }$ n - $\frac { 7 } { 6 }$ C)a_n?= - $\frac { 6 } { 7 }$ n + $\frac { 6 } { 7 }$ D)a_n?= $\frac { 6 } { 7 }$ n + $\frac { 6 } { 7 }$ E)a_n?= - $\frac { 7 } { 6 }$ n + $\frac { 7 } { 6 }$

Question

Quizplus · Accepted Answer

The formula for an arithmetic sequence is: 
an = a1 + (n-1)d 
where a1 is the first term, d is the common difference, and n is the term number. 
We are given: 
a1 = S1U1B0 = 0 
d = -11ea99db_b2bd_2820_94ac_e99e03c4338d_TB4590_11 
Therefore, we can write the formula as: 
an = 0 - 11ea99db_b2bd_2820_94ac_e99e03c4338d_TB4590_11(n-1) 
Simplifying this expression gives: 
an = - 11ea99db_b2bd_9d55_94ac_c3d1f848ecf9_TB4590_11n + 11ea99db_b2bd_9d56_94ac_1770049e1015_TB4590_11 
This matches choice C.

Find a Formula for An ?for the Arithmetic Sequence 67\frac { 6 } { 7 }76​

Find a Formula for A_n?for the Arithmetic Sequence $\frac { 6 } { 7 }$