Question

Find the 22rd term of this pattern: -2, -5, -8, -11, -14,.... determine if it’s arithmetic or geometric ! Please answer this !!

Answer 1

Arithmetic, -65

Explanation:

Use an explicit equation.

a(n) = -2-3(n-1)

Substitute 22 for n.

a(22) = -2-3(21)

a(22)=-2-63

a(22)=-65