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 C x 2 (y 3) 2 = 5 Let Q(t 2, t) be any point on the parabola y 2 = x so that the equation of the tangent at Q is x 2ty t 2 = 0 which touches the circle C So Hence, the number of common tangents is 3 and x 2y 1 = 0 is a common tangent when t = 1Y = (1/)x² The equation of the parabola whose focus is at (7, 0) and directrix at x = 7 is x = (1/28)y² The equation of the parabola whose focus is at (3, 0) and directrix x = 3 is y = (1/12)x² x = (1/4)y^2 The focus of the parabola is (1,0) 36y = x^2 Find the area bounded by the parabola x^2 = 4y and y = 4 (Last Updated On ) Problem Statement ME Board April 1999 Sketch The Graph Of Y 4x 2 Mathskey Com Y=-x^2+3x+4 parabola