Question

Find the 7th term in the
sequence
-4, -8,-16,

Answer 1

-256

Explanation:

Given:

• a₁ = -4 (First term)

• r = -8 ÷ -4 = 2 (Common ratio)

• n = 7 (Number of term)

Find:

• a₇ = ?

Formula:

• aₙ = a₁ · rⁿ⁻¹

Solve:

• a₇ = -4 · 2⁷⁻¹

• a₇ = -4 · 2⁶

• a₇ = -4 · 64

• a₇ = -256