Find the equation of the circle with centre at (2, -1) and which passes through the point (3, 6)
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GENERAL EQUATION OF A CIRCLE HAVING CO-ORDINATES OF CENTER ( h , k ) AND PASSING THROUGH THE POINTS ( x , y ) AND HAVING RADIUS r IS GIVEN BY
( x - h )² + ( y - k )² = r²
h = 2 , k = -1 And r² = 50
=>
( x - 2 )² + ( y + )² = 50
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r² = ( 3-2 )² + ( 6 +1 )²
r² = 50
______________________________
GENERAL EQUATION OF A CIRCLE HAVING CO-ORDINATES OF CENTER ( h , k ) AND PASSING THROUGH THE POINTS ( x , y ) AND HAVING RADIUS r IS GIVEN BY
( x - h )² + ( y - k )² = r²
h = 2 , k = -1 And r² = 50
=>
( x - 2 )² + ( y + )² = 50
______________________________
r² = ( 3-2 )² + ( 6 +1 )²
r² = 50
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