Answer:
Explanation:
this is a arithmetic sequence the first term is : A1 = -8
the comon difference is d = -5-(-8) =-2-(-5) =1-(-2) = 4-1 =3
the formula can be used to describe this sequence is :
An =A1 +(n-1)d
An = -8 +3(n-1)
An = 3n -11
add by 3
-8+3=-5
-5+3=-2
-2+3=1
1+3=4
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