Question

What is the reclusive rule for this geometric sequence? -64, -16, -4, -1

Answer 1

See below ~

Explanation:

Finding the common ratio (r)

• Divide a term by the term precedes (follows) it
• r = -16/-64
• r = 1/4
• r = 0.25 [Blank 1 answer]

First term (a₁)

• The first term in the sequence is the term from which the sequence starts
• a₁ = -64 [Blank 2 answer]