Find the Center and Radius of the Circle $x ^ { 2 } + y ^ { 2 } = 49$

question 33

Multiple Choice

Find the center and radius of the circle $x ^ { 2 } + y ^ { 2 } = 49$ .

• A)center: (0,0),radius: 11
• B)center: (-1,1),radius: 11
• C)center: (0,0),radius: 7
• D)center: (-1,-1),radius: 7
• E)center: (-7,-11),radius: 7

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Definitions:

Dullness

In medical percussion, a sound indicative of increased density in body tissues, often associated with fluid accumulation or underlying organs, as opposed to resonance typical of air-filled spaces.

Appendicitis

Inflammation of the appendix, a small organ attached to the large intestine, which can lead to serious complications if not treated.

Blumberg Sign

A clinical sign indicative of peritonitis, elicited by rebound tenderness when pressure is applied and then abruptly released.

Iliopsoas Muscle Test

A clinical examination used to evaluate the strength and integrity of the iliopsoas muscle, important for hip flexion.