Let f(x)=x4−8x2\displaystyle {f{{\left({x}\right)}}}={x}^{{4}}-{8}{x}^{{2}}

The x\displaystyle {x}-intercept(s) is/are:  

The y\displaystyle {y}-intercept(s) is/are:  

A local maximum value of f(x)\displaystyle {f{{\left({x}\right)}}} is  

A local minimum value of f(x)\displaystyle {f{{\left({x}\right)}}} is  

The inflection point(s) of f(x)\displaystyle {f{{\left({x}\right)}}} are at  

Sketch a graph of y=f(x)\displaystyle {y}={f{{\left({x}\right)}}}, showing the intercepts, local maximum and minimum values, and inflection points CLEARLY LABELED.

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