College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 2 - Section 2.4 - Circles - 2.4 Assess Your Understanding - Page 186: 8


Option (a)

Work Step by Step

RECALL: (1) The general form of a circle's equation is: $x^2+y^2+ax+by+c=0$ (2) The standard form of a circle's equation is: $(x-h)^2 +(y-k)^2=r^2$ (3) The general form can be transformed to standard form by completing the square (as can be seen in Example 4 on page 185 of the textbook). Thus, the answer is Option (a).
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