ariasdamian459 ariasdamian459
  • 24-05-2021
  • Mathematics
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what is the radius of the circle which has the given equation? (x - 2)2 + (y + 1)2 = 16

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abidemiokin
abidemiokin abidemiokin
  • 29-05-2021

Answer:

r = 4units

Step-by-step explanation:

The standard foem of equation of a line is expressed as;

(x-a)² + (y-b)² = r²

r is the radius

Compare with the given equation (x - 2)^2 + (y + 1)^2 = 16

r² = 16

r = √16

r = 4

Hence the radius of the circle is 4

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