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What is the rule for the following geometric sequence? 64, -128, 256, -512...

What is the rule for the following geometric sequence? 64, -128, 256, -512...
asked 113k views
3 votes
What is the rule for the following geometric sequence? 64, -128, 256, -512...

asked
User Brad Lord
by
7.7k points

2 Answers

9 votes

Answer:

64 (-2) ^ n-1

Explanation:

answered
User Dmitriy Mozgovoy
by
8.0k points
7 votes

Answer:

The previous number keeps getting multiplied by - 2

Explanation:

64 ×-2 = -128

-128 × -2 = 256

256 × -2 = -512

answered
User Yi Jiang
by
7.5k points
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