SOLUTION: 1.find the equation of the circle w/ center (1, 4) and radius 5. 2.find the equation of the circle w/ center (-3, 6) and radius 4. 3.reduce the equation to standard form and fin

Question 936879: 1.find the equation of the circle w/ center (1, 4) and radius 5.
2.find the equation of the circle w/ center (-3, 6) and radius 4.
3.reduce the equation to standard form
and find the center and radius of the circle.
a. x^2+y^2+4x-6y-12=0
b.x^2+y^2-8x+2y-16=0
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The general equation for a circle centered at (h,k) with radius R is,

1.
Now do the same for 2.
.
.
.
To get to the general equation, complete the square in x and y,

(,),
.
.
.

(,),

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