$f(x)=1\mathrm{.}1x^4-5\mathrm{.}1x^2+4\mathrm{.}07,[-4,4,-8,14]$

A$.$ The function is increasing on the interval$($s$)$

$($Type your answer in interval notation. Use a comma to separate answers as needed. Round to three decimal places as needed.$)$

B$.$ The function is never increasing.

$7$ what interval$($s$)$ is the function decreasing? Select the correct choice below and, if necessary, fill in the answer box within your choice.

A$.$ The function is decreasing on the interval$($s$).$

$($Type your answer in interval notation. Use a comma to separate answers as needed. Round to three decimal places as needed.$)$

B$.$ The function is never decreasing.

Find the relative maximum value$($s$).$ Select the correct choice below and, if necessary, fill in the answer boxes within your choice.

A$.$ The relative maximum is which occurs at $x=$

$($Round to three decimal places as needed.$)$

B$.$ The leftmost relative maximum is $$ which occurs at $x=$ and the riahtmost relative maximum is $$ which occurs at $x=1.$