Exercise $4$a:

Find the x$-$coordinate for where f$($x$)=($x $+2)/$x$2$ achieves its minimum value.

$6$ points

Question $8$

Exercise $4$b:

What sub$-$interval along the x$-$axis makes for a plot window diplsaying the most detail?

Which linspace is best?

x$=$linspace$(-5,1)$;

x$=$linspace$(-5,-3)$;

x$=$linspace$(-5,3)$;

x$=$linspace$(-10,-2)$;