Maxima and MinimaHard

Question

A differentiable function ƒ(x) has a relative minimum at x = 0, then the function y = ƒ(x) + ax + b has a relative minimum at x = 0 for -

Options

A.all a and all b
B.all b if a = 0   
C.all b > 0   
D.all a > 0

Solution

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