Evaluate the Sum $$\sum _ { k = 1 } ^ { 4 } ( - 1 ) ^ { k } \cdot - 2 k$$

question 223

Multiple Choice

Evaluate the sum. Round to two decimal places, if necessary.
- $$\sum _ { k = 1 } ^ { 4 } ( - 1 ) ^ { k } \cdot - 2 k$$

• A) 20
• B) \(- 4\)
• C) \(- 20\)
• D) 16

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Definitions:

Price Ceiling

A government-imposed limit on the price charged for a product, intended to prevent the price from rising to a certain level.

Maximum Price

A price ceiling set by a government or regulatory body, above which a particular good or service cannot be sold.

Government

The governing body of a nation, state, or community which is responsible for making and enforcing laws and managing public resources and affairs.

Rationing Mechanism

a system or policy by which scarce goods or services are distributed.