← Let f(x) = 2√x -x. a. Find all points on the graph of f at which the tangent line is horizontal. 1 b. Find all points on the graph of f at which the tangent line has slope 2 The tangent line is horizontal at the point(s). (Simplify your answer. Type an ordered pair. Use a comma to separate answers as needed.) 1 - The tangent line has slope of 2 (Simplify your answer. Type an ordered pair. Use a comma to separate answers as needed.) at the point(s) ***

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