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2:2 Find the slope of the tangent line to the ellipse 16 = 1 at the point (x, y). slope = Are there any points where the slope is not defined? (Enter them as comma-separated ordered-pairs, e.g., (1,3), (-2,5). Enter none if there are no such points.) slope is undefined at\fIf + = 7 y and y(2) = 13, find y' (2) by implicit differentiation. y' ( 2) =