Find the equation of the circle that passes through the origin and has its center at (-3,-4).
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distance between origi n and (-3,-4) is the radius.
radius = root[ (-3^2 + -4^2 ]
= root(25)
= 5
equation is (x+3)^2 + (y+4)^2 = 5^2
radius = root[ (-3^2 + -4^2 ]
= root(25)
= 5
equation is (x+3)^2 + (y+4)^2 = 5^2
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