31 Consider the function y = 2x2. a Find the equations of the tangents to the function from the external point (1, -6). b Find the points of contact for the tangents. c Show that no tangents to the function pass through the point (1, 4). d Draw a graph of y = 21 showing the information above.24 Find where the tangent to the curve y = -23 + 2x2 + 1 at the point where a = -1, meets the curve again. point where r = 1, meets the curve again