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REALLY NEED HELP, PLEASE HELP ME

REALLY NEED HELP, PLEASE HELP ME-example-1
User Yanto
by
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1 Answer

6 votes

x^2 + y^2 -8x -6y +21 = 0

centre = -(-8)/2, -(-6)/2

= 4, 3

radius = √(4^2) + 3^2 - 21

= √(16 +9 -21)

= √(25 -21)

= √4

= 2

User Lindexi
by
7.8k points

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