Find the Sum of the Sequence $$\sum _ { k = 1 } ^ { 4 } ( - 1 ) ^ { k } \cdot - 8 k$$

question 45

Multiple Choice

Find the sum of the sequence.
- $$\sum _ { k = 1 } ^ { 4 } ( - 1 ) ^ { k } \cdot - 8 k$$

• A) \(- 16\)
• B) \(- 80\)
• C) 80
• D) 4,096

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Definitions:

Synthetic Materials

Manufactured substances made from chemical synthesis, rather than those made from natural resources.

Hormesis

A biological phenomenon where a low dose of a harmful substance has a beneficial effect, while a high dose is toxic.

Endocrine System

A network of glands that produce and release hormones to regulate various bodily functions.

Hormones

Chemical messengers produced by the endocrine glands that regulate various bodily functions.