Calculus: Early Transcendentals 9th Edition

Published by Cengage Learning
ISBN 10: 1337613924
ISBN 13: 978-1-33761-392-7

Diagnostic Tests - B Diagnostic Tests: Analytic Geometry - Page xxviii: 2

Answer

$(x+1)^2+(y-4)^2 = 52$

Work Step by Step

We can write the general equation for a circle: $(x-a)^2+(y-b)^2 = r^2$ where $(a,b)$ is the center of the circle and $r$ is the radius The center of this circle is $(-1,4)$ We can find the radius: $r = \sqrt{(-1-3)^2+(4-(-2))^2}$ $r = \sqrt{(-4)^2+(6)^2}$ $r = \sqrt{16+36}$ $r = \sqrt{52}$ We can write the equation of this circle: $(x-a)^2+(y-b)^2 = r^2$ $(x+1)^2+(y-4)^2 = 52$
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