3 years ago

The equation for the circle is:

1 answer:

ivann1987 [24]3 years ago

4 0

Use completion of sq method
x^2+y^2+14x+10y-7=0
(x+7)^2+(y+5)^2=7+49+25
(x+7)^2+(y+5)^2=81
so centre is(-7,-5) radius is9

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