Convert the Polar Equation to Rectangular Form $r = 3 \cos \theta$

question 371

Multiple Choice

Convert the polar equation to rectangular form. $r = 3 \cos \theta$

• A) \(x ^ { 2 } + y ^ { 2 } + 3 y = 0\)
• B) \(x ^ { 2 } + y ^ { 2 } - 3 = 0\)
• C) \(x ^ { 2 } + y ^ { 2 } - 3 y = 0\)
• D) \(x ^ { 2 } + y ^ { 2 } + 3 x = 0\)
• E) \(x ^ { 2 } + y ^ { 2 } - 3 x = 0\)

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Definitions:

Dopamine

A neurotransmitter involved in the regulation of movement, attention, learning, mood, and motivation.

Monoamines

A group of neurotransmitters, including dopamine, norepinephrine, and serotonin, that play key roles in regulating mood, arousal, and sleep.

Acetylcholine

A neurotransmitter in both the peripheral and central nervous systems that plays a crucial role in muscle contraction and cognitive functions.

Parasympathetic

The parasympathetic nervous system is one of the two divisions of the autonomic nervous system, responsible for conserving energy and reducing bodily functions like heart rate.