Answer
Local maximum $(-0.58,0.39)$
Local minimum $(0.58,-0.39)$
increasing $\left( -\infty ,-0.58\right) $ U $( 0.58, \infty )$
decreasing in $(-0.58,0.58)$
Work Step by Step
Using the graphing calculator (asked in question) we get the graph shown in the picture. As we see from graph there is only one local maximum $(-0.58,0.39)$ (when corrected to two decimal numbers) and one local minimum $(0.58,-0.39)$ .
and as we see from graph function is increasing in domain $\left( -\infty ,-0.58\right) $ and $( 0.58, \infty )$
And decreasing in $(-0.58,0.58)$