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20.08.2020 •
Mathematics
The equation of a circle is
what are the coordinates for the center of the circle and the length of the radius
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Ответ:
The answer is
center = ( - 7 , - 1)radius = 6Step-by-step explanation:
The general equation of a circle is given by
x² + y² + 2gx + 2fy + c = 0where the center of the center of the circle is given by
( - g , - f)From the question the equation is
x² + y² + 14x + 2y + 14 = 0
Comparing with the general equation above we have
2g = 14 2f = 2
g = 7 f = 1 c = 14
So the center of the circle is
( - 7 , - 1)The radius of a circle is given by
where
g = 7
f = 1
c = 14
Substitute the values into the above formula
That's
we have the final answer as
radius = 6Hope this helps you
Ответ: