Find the Equation of the Circle Graphed Below $\quad x ^ { 2 } + y ^ { 2 } = 1$

question 4

Multiple Choice

Find the equation of the circle graphed below.

• A) \(\quad x ^ { 2 } + y ^ { 2 } = 1\)
• B) \(\quad x ^ { 2 } + y ^ { 2 } = 25\)
• C) \(x ^ { 2 } + y ^ { 2 } = 5\)
• D) \(x ^ { 2 } + y = 25\)
• E) \(y ^ { 2 } = x ^ { 2 } + 25\)

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Definitions:

Juxtaglomerular Apparatus

A specialized structure in the kidney involved in blood pressure regulation by secreting renin in response to blood pressure changes.

Efferent Arteriole

An efferent arteriole is a small artery that emerges from the glomerulus in the kidney, carrying filtered blood away from the glomerulus to the capillaries of the kidney tubules.

Angiotensin II

A hormone that causes blood vessels to constrict, resulting in increased blood pressure, and stimulates the release of aldosterone from the adrenal glands.

Aldosterone Secretion

The release of aldosterone, a steroid hormone, from the adrenal cortex, which regulates sodium and potassium balance in the blood.