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

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asked May 2, 2022 113k views

3 votes

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

Mathematics
high-school

Brad Lord asked

by Brad Lord

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2 Answers

9 votes

Answer:

64 (-2) ^ n-1

Explanation:

Dmitriy Mozgovoy answered May 3, 2022

by Dmitriy Mozgovoy

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7 votes

Answer:

The previous number keeps getting multiplied by - 2

Explanation:

64 ×-2 = -128

-128 × -2 = 256

256 × -2 = -512

Yi Jiang answered May 7, 2022

by Yi Jiang

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