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14-04-2017
Mathematics

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The equation of a circle is x2 + 2x + y2 + 6y = 0.
a) Write the equation in graphing form. Show your work.
b) Determine the center and radius of the circle.
c) Draw the graph of the circle

Respuesta :

14-04-2017

(x^2+2x+1)+(y^2+6y+9)=10
(x+1)^2 + (y+3)^2 = 10

centre (-1,-3) radius sqrt10

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