Question

Find a formula for the nth term in this
arithmetic sequence:
a1 = 8, a2 = 4, a3 = 0, 24 = -4, ...

Answer 1

Answer:

an =  -4n +12

Step-by-step explanation:

hello :

the nth term in this  arithmetic sequence is : an = a1 + (n -1 )d

a1 = 8      d = a2-a1 = 4-8 = -4  ( common difrence)

an = 8 + (n -1 )(-4) =  8 - 4n +4

an =  -4n +12