candy60
candy60
07-10-2016
Mathematics
contestada
Find the center of x^2 + 4x + y^2 - 6y = -4
Respuesta :
egwstl
egwstl
07-10-2016
the center is (-2,3) because you find the factors of (x^2+4x+4) + (Y^2-6y+9)=-4+4+9. So it is [(x+2)^2]/9 + [(y-3)^2]/9 = 9. In this case, nothing else matter besides (x+2) and (y-3)
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