Question

What is the explicit formula for the following sequence: -4, -1, 2, 5...?

A) A(n) = -4 + (n - 1)(2)
B)A(n) = -4 + (n - 1)(3)
C) A(n) = 3 + (n - 1)(-4)
D)A(n) = 3(n - 1) + 5

Answer 1

u have an arithmetic sequence with a common difference of 3

A(n) = -4 + (n-1) * 3