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Find the points on the curve y = 2x3 + 3x2 - 12x + 1 where the tangent line is horizontal. (x, y ) = -2, 25 (smaller x-value) X ( x, y ) = 1 , - 4 (larger x-value) X Enhanced Feedback Please try again. Find the x-value where - is equal to 0. This is where the tangent of the graph of th dx Need Help? Watch It 23. [-/1 Points] DETAILS SCALCET8 3.1.513.XP. Find an equation of the tangent line to the curve y = xv x that is parallel to the line y = 6 + 9x. Y =