Consider the function f$($x$)=$x$+6$x$^2/3($a$)$ Find the domain of $.$

f $($x$)$

Note: Use the letter U for union. To enter Domain:

$($b$)$ Give the horizontal and vertical asymptotes of f $($x$)$

$,$ if any.

Enter the equations for the asymptotes. If there is no horizontal or vertical asymptote, enter NA in the

associated response area.

horizontal

asymptote:

vertical

asympto