Answer
Centre = (2, 4), Radius = $\sqrt22$
Work Step by Step
$x^{2}$ - 4x + $y^{2}$ - 8y - 2 = 0
$(x-2)^{2}$ - 4 + $(y-4)^{2}$ - 16 - 2 = 0
$(x-2)^{2}$ + $(y-4)^{2}$ = 22
Centre = (2, 4)
Radius = $\sqrt22$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 13 - Section 13.1 - The Parabola and the Circle - Exercise Set - Page 926: 31
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