Graph f(x)=4x\displaystyle {f{{\left({x}\right)}}}={4}-{\left|{{x}}\right|} on the Cartesian plane to the right.

f(x)\displaystyle {f{{\left({x}\right)}}}  is increasing on the interval(s):   

 f(x)\displaystyle {f{{\left({x}\right)}}}  is decreasing on the interval(s):   

f(x)\displaystyle {f{{\left({x}\right)}}} has a maximum of at x =

 f(x)\displaystyle {f{{\left({x}\right)}}}  has a minimum of at x =

The domain of f(x)\displaystyle {f{{\left({x}\right)}}} is:   

The range of f(x)\displaystyle {f{{\left({x}\right)}}} is:   

If any of the above do not exist, enter DNE in the answer box.

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