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3 years ago

15

Find the center and radius for the circles with the following equation x^2+y^2-4x+6y+11=0

1 answer:

Vera_Pavlovna [14]3 years ago

7 0

Rearrange x²+y²-4x+6y=-11 I'll tell you an easy way. take the coefficient of x and divide it by -2 and the coefficient of y and divide it by -2 so -4 ÷-2 = 2 6÷-2= -3 (2,-3) is the center of the circle to know the radius √2² + -3² + -11 =√2 The Radius equals √2

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