Find the Center and Radius of the Circle $( x + 4 ) ^ { 2 } + ( y + 9 ) ^ { 2 } = 4$

question 22

Short Answer

Find the center and radius of the circle.
- $( x + 4 ) ^ { 2 } + ( y + 9 ) ^ { 2 } = 4$
A) (4,9) ; 4
B) (-9,-4) ; 2
C) (-4,-9) ; 2
D) (9,4) ; 4

• A) (4,9) ; 4
• B) (-9,-4) ; 2
• C) (-4,-9) ; 2
• D) (9,4) ; 4

Understand the key components and services of the Internet.

Recognize the importance and function of Internet protocols.

Identify different forms of digital communication and their purposes.

Distinguish between various types of e-commerce.

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Definitions:

Formal Leader

An individual who holds an official position of authority and is responsible for directing and managing the efforts of others.

Sound Vibration

The movement of air particles caused by a vibrating object, which travels to the ear and is interpreted as sound.

Frequency

The rate at which a repeating event occurs, such as the number of occurrences of a signal or event per unit of time.

Conversational Tones

Conversational tones are relaxed and informal styles of communication that mimic everyday spoken language, often used to make written content more engaging and accessible.