Question

Find a formula for the nth term of the arithmetic sequence:
-2, -8, -14, -20, .....

Answer 1

Answer: x(n)=x(n-1)-6

Step-by-step explanation:

-2-(-6)=-8    x1=-2                x2-x1=-6

-8-(-6)=-14   x2=-8               x3-x2=-6

-14-(-6)=-20  x3=-14

Answer 2

Answer:

an = -2 + 6(n – 1)

Step-by-step explanation:

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