Question
What is the diameter of the circle given by the equation (x + 7)2 + (y + 2)2 = 121?
A.
22
B.
33
C.
11
D.
5.5
A.
22
B.
33
C.
11
D.
5.5
Asked by: USER6258
173 Viewed
173 Answers
Answer (173)
Answer:
A.
22
Step-by-step explanation:
The equation of the circle is written in the form
(x-h)^2 + (y-k)^2 = r^2
So
(x + 7)2 + (y + 2)2 = 11^2
The radius is 11
The diameter is twice the radius, so the diameter is 2*11 =22