Select a Linear Combination of the Standard Unit Vectors I

question 29

Multiple Choice

Select a linear combination of the standard unit vectors i and j of given initial and terminal points of a vector.. ​
Initial Point
Terminal Point
(0,-8)
​(9,12)
​
​

• A)​9i + 20j
• B)​-9i - 20j
• C)​20i - 9j
• D)​​20i + 9j
• E)​9i - 20j

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Definitions:

Ecological Systems Theory

A theory proposed by Urie Bronfenbrenner, suggesting that human development is influenced by different kinds of environmental systems ranging from the immediate family and school settings to broader community and society levels.

Microsystem

Microsystem refers to the closest layer of the social environments in an individual's life, such as family and school, and the interactions within these settings.

Intrapychic Conflict

An internal struggle arising from opposing demands or impulses within an individual's mind.

Prosocial Behaviors

Voluntary actions that are intended to help or benefit another person or group of people without expecting anything in return.