How to identify the center and radius of the circle
Asked by admin @ in Mathematics viewed by 341 People
Identify the center and the radius of a circle with equation (x-4)^2+(y+2)^2=9
Answered by admin @
Answer:
center:(4,-2)
Radius: 3 units
Step-by-step explanation:
The standard equation of a circle is given as , where (h,k) is the center and r is the radius of the circle.
The given equation is .
We compare to the standard equation of the circle to get;
and
Hence the center of the circle is (4,-2).
Also, we have
Therefore
units.
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