Question

If the second term of an arithmetic progression is - 4 and the fourth term is 4, find the eighth term.

Answer 1

Explanation:

a₄ = a₁ + (4-1)d

4 = -4 + 3d

d = 8/3

a₈ = a₄ + (8-4)d = 4 + 4(8/3) = 14⅔