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2 votes
2 votes
The equation below describes a circle. What are the coordinates of the center

of the circle?
(x-4)² + (y+12)² = 17²
A. (-4,12)
B. (4,12)
C. (-4,-12)
D. (4.-12)
SUBMIT

User Anshul Parashar
by
2.9k points

1 Answer

19 votes
19 votes

Answer:

D. (4, -12)

Explanation:

Given the equation of a circle is (x -4)² +(y +12)² = 17², you want to know the center.

Circle

The equation of a circle centered at (h, k) with radius r is ...

(x -h)² +(y -k)² = r²

Comparing this to the given equation, we can identify the values of the parameters as ...

(x -4)² +(y +12)² = 17²

h = 4, -k = 12, r = 17 . . . . . k = -12

This tells us the center is ...

(h, k) = (4, -12) . . . . . matches choice D

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The equation below describes a circle. What are the coordinates of the center of the-example-1
User Bricklore
by
3.1k points