Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 10 - Section 10.1 - The Parabola and the Circle - Exercise Set - Page 610: 36

Answer

See graph

Work Step by Step

$$x^2+y^2-2x-6y-5=0$$ $$x^2+y^2-2x-6y=5$$ $$x^2-2x+1+y^2-6y+9=5+1+9$$ $$(x-1)^2+(y-3)^2=15$$ The center is (1,3) and the radius is $\sqrt{15}$. Points to plot are: $$(1+\sqrt{15},3)$$ $$(1-\sqrt{15},3)$$ $$(1,3+\sqrt{15})$$ $$(1,3-\sqrt{15})$$ Approximate these values with a calculator, plot these points and connect with a circle.
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