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Write the standard form of the circle with the center (-11,11) and a point on the circle (-15,7)

 Mar 12, 2020
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  You have the center....you need to find the radius...this will be the distance from the center to the point given

 

d = sqrt ( (-11 - -15)^2  + (11-7)^2 )   = sqrt 32

 

Then standard form is       (x-h)^2 + (y-k)^2 = r^2

                                          (x+11)^2 + (y-11)^2 = 32

 

Here is a pic:

 

  https://www.desmos.com/calculator/pqssr0xmvj

 Mar 12, 2020
edited by ElectricPavlov  Mar 12, 2020

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