michelleruiz723 michelleruiz723

25-03-2020
Mathematics

contestada

The equation of a circle is given below . Identify the center and the radius. x ^ 2 + y ^ 2 + 8x - 4y + 11 = 0

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amna04352 amna04352

26-03-2020

Answer:

Centre: (-4,2)

Radius: 3

Step-by-step explanation:

h = 8/-2 = -4

k = -4/-2 = 2

(-4)² + 2² - 11 = r²

r² = 9

r = 3

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