Question: A circle with centre C has equation x + y 6x + 4y + 8 = 0 a) Express the equation in the form

A circle with centre C has equation x² + y² − 6x + 4y + 8 = 0

a) Express the equation in the form (x − a)² + (y − b)² = r².

b) Find the coordinates of C and the radius of the circle.

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a We can rewrite the equation as x 6x y 4y 8 0 x 6x 9 y 4y 4 8 9 4 x 3 y 2 17 ... View full answer

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