For each of the functions below, indicate whether the function is onto, one$-$to$-$one, neither or both. If the function is not onto or not one$-$to$-$one, give an example showing why.

$($a$)$

$.$

$($b$)$

$.$

$($c$)$

$.$

$($d$)$

$,$

$($e$)$

$,$

$($f$)$

$,$

$($g$)$

$,$

$($h$)$

$,$

$($i$)$

$,$

$($j$)$

$,$

$($k$)$

$,$

$.$