Find the Center and Radius of the Circle $x ^ { 2 } + y ^ { 2 } + 18 x + 2 y = - 46$

question 114

Multiple Choice

Find the center and radius of the circle.
- $x ^ { 2 } + y ^ { 2 } + 18 x + 2 y = - 46$

• A) \(( - 1 , - 9 ) , \mathrm { r } = 6\)
• B) \(( 1,9 ) , r = 36\)
• C) \(( 9,1 ) , r = 36\)
• D) \(( - 9 , - 1 ) , \mathrm { r } = 6\)

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Definitions:

Theory of Planned Behavior

A psychological theory that predicts an individual's intention to engage in a behavior at a specific time and place, based on their attitude, subjective norms, and perceived behavioral control.

Attitude-Behavior Consistency

The extent to which an individual's behaviors or actions mirror their feelings and beliefs.

Effort Justification

A phenomenon where people attribute a greater value to an outcome they had to put effort into achieving, often to reduce cognitive dissonance.

Post-Decision Dissonance

A form of regret or psychological discomfort experienced after making a challenging decision.