Evaluate f(x)=x35x2+3x+6\displaystyle {f{{\left({x}\right)}}}={x}^{{3}}-{5}{x}^{{2}}+{3}{x}+{6} at 1 and 3 to determine if the Intermediate Value Theorem guarantees that a zero exists between the two values.

a) f(1) =  

b) f(3) =  

c) Does the Intermediate Value Theorem guarantee that a zero exists between 1 and 3?