Question 1141841: What is the point in the standard (x,y) coordinate plane that is the center of a circle with the equation (x+6)^2+(y-9)^2=25? Found 2 solutions by Alan3354, ikleyn:Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website! What is the point in the standard (x,y) coordinate plane that is the center of a circle with the equation (x+6)^2+(y-9)^2=25?
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The center is (-6,9)
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You need to know how I know that.
The equation
+ = a
with a >= 0 represents the circle in (x,y) plane with the center at the point (h,k) and the radius of .
It is written in any textbook, and you should memorize it as "2 x 2 = 4".