Suppose that $\displaystyle {f{{\left({x},{y},{z}\right)}}}$ = $\displaystyle {2}{x}+{4}{y}+{4}{z}$ at which $\displaystyle {0}\le{x},{y},{z}\le{1}$.

1. Absolute minimum of $\displaystyle {f{{\left({x},{y},{z}\right)}}}$ is Preview Question 6 Part 1 of 2  
2. absolute maximum of $\displaystyle {f{{\left({x},{y},{z}\right)}}}$ is Preview Question 6 Part 2 of 2   .