Answer
$y = 2$
Work Step by Step
Center of the circle rolling on x-axis will always be 2 unit above x-axis and its path would be straight line
So equation of path of the center of the circle would be
$y = 2$
College Algebra (10th Edition)
by Sullivan, Michael
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 188: 59
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