I cant get the problem. can anyone help me please. -Find equations for two lines thorugh the origin that are tangent to the curve x^2 - 4x +y^2 + 3 = 0. I found dy/dx=(-x+2)/y and put thta into the point slope equation, and then filled in (0,0) for the point, but couldnt get an equation. any help appretiated.