Evaluate $\displaystyle {f{{\left({x}\right)}}}=\sqrt{{{20}{x}^{{3}}+{18}{x}^{{2}}}}$ for each tenth between $\displaystyle {x}=-{0.9}$ and $\displaystyle {x}={.4},$  i.e. $\displaystyle {x}=-{0.9},-{0.8},-{0.7},\ldots,{.2},{.3},{.4}.$ Round all function values to the nearest tenth.

Plot the corresponding points on the graph below.