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likoan [24]
3 years ago
10

A circle has its center at (−2, −3) and a radius of 3 units. What is the equation of the circle? (x + 2)2 + (y − 3)2 = 9 (x − 2)

2 + (y − 3)2 = 3 (x + 2)2 + (y + 3)2 = 9 (x + 2)2 + (y + 3)2 = 3
Mathematics
2 answers:
amid [387]3 years ago
8 0
The equation of a circle:
(x-h)^2+(y-k)^2=r^2
(h,k) - the coordinates of the center
r - the radius

\hbox{the center: } (-2,-3) \\
h=-2 \\ k=-3 \\ \\
\hbox{the radius: } 3 \ units \\
r=3 \\ \\ \hbox{the equation:} \\
(x-(-2))^2+(y-(-3))^2=3^2 \\
\boxed{(x+2)^2+(y+3)^2=9}
Alexeev081 [22]3 years ago
4 0

The answer is 9

............................

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