- #1
sktrinh
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Please help me find the standard equation of the circle passing through the point (−3,1) and containing the points of intersection of the circles
x^2 + y^2 + 5x = 1
and
x^2 + y^2 + y = 7
I don't know how to begin, I am used to tangent lines or other points, but I don't know what is visually going on here. I can find the two centres C(h,k) of the given equations (-5/2,0) & (0,-1/2) both with r = sqrt(29/4), but what is the conceptual trick to equate that to the equation in question? Thanks for your help.
x^2 + y^2 + 5x = 1
and
x^2 + y^2 + y = 7
I don't know how to begin, I am used to tangent lines or other points, but I don't know what is visually going on here. I can find the two centres C(h,k) of the given equations (-5/2,0) & (0,-1/2) both with r = sqrt(29/4), but what is the conceptual trick to equate that to the equation in question? Thanks for your help.
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