Fill in the blanks for the attributes of the functions shown in the graph.
f (x) is positive on the interval=_______ (If none write none)
f (x) is negative on the interval=_______ (If none write none)
f (x) has a zero(s) at x=_______ x=_______ x=_______ x=_______
f(x) is increasing on the interval=_______ (If none write none)
f (x) is decreasing on the interval=_______ (If none write none)
f (x) has a local minimum of f(x)=_______ at x= _______ (If none write none)
f (x) has a local minimum of f(x)=_______ at x=_______ (If none write none)
f (x) has a local minimum of f(x)=_______ at x=_______ (If none write none)