Find the equation of a curve passing through the point (0, –2) given that at any
point (x, y) on the curve, the product of the slope of its tangent and y coordinate
of the point is equal to the x coordinate of the point 18 At any point (x, y) of a curve, the slope of the tangent is twice the slope of the
line segment joining the point of contact to the point (– 4, –3) Find the equation
of the curve given that it passes through (–2, 1)