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If Va+ vy = 6 and y(4) = 16, find y' (4) by implicit differentiation. Question Help: Video Submit Question The curve below has a horizontal tangent line at the point ( - 3, - 2) and at one other point. Find the coordinates of the second point where the curve has a horizontal tangent line. 9x2+ 54x + 16y + 160y = - 337 x-coordinate of second point = y-coordinate of second point = Submit Question Find the slope of the tangent line to the curve below at the point (5, 7). V2x + 2y+ 2xy = 13.265579750907 slope = Submit Question Problem 3 Find the equations of the tangent line to 2x + 2y' = 9xy at the point (2, 1).Find the normal line at this point as well (the normal line at a point is the line through the point, perpendicular to the tangent line)