1.

Find the center and radius of the circle(x + 5)² + (y - 3)² = 36​

Answer»

⠀⠀⠀ ՏϴᏞႮͲᏆϴΝ

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The equation ofa circle with CENTRE (h, K) and radius r is given as:

( x - h)^{<klux>2</klux>}  + (y - k)^{2}  = k^{2}

It is given that centre (h,k) = (-2, 3) and radius (r) = 4 .

Therefore, the equation of the circle is:

(x + 2)^{2}  + (y - 3)^{2}  =  {(4)}^{2}

x ^{2}  + 4x  + 4 \:  +  {y}^{2}  - 6y + 9 = 16

x ^{2}  +  {y}^{2}  + 4x - 6y - 3 = 0

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