x²+4 Let: f(x)= x² -4 - 16x 16(3x²+4) - f'(x) = f"(x)= %3D (x² – 4)² ' 1. Find x- and y- intercepts of the graph of f, if it has any. (x² – 4)3 2. Find vertical and horizontal asymptote(s) of f , if...

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Extracted text: x²+4 Let: f(x)= x² -4 - 16x 16(3x²+4) - f'(x) = f"(x)= %3D (x² – 4)² ' 1. Find x- and y- intercepts of the graph of f, if it has any. (x² – 4)3 2. Find vertical and horizontal asymptote(s) of f , if it has any. 3. Find the critical number(s), intervals(s) of increasing and decreasing and points of relative extrema of f, if it has any.