Write the following function as a $$fx$.$m$$ file:

f $($x$)=$

$$

$$

$$

x $+1$ if $2<=$ x $<3,$

x$25$ if $3<=$ x $<7,$

$$x $+$ sin$($x$)$ if $7<=$ x $<=9.$

Use a separate $.$m$$ file plot f $($x$)$ by calling f $($x$)$ from $$fx$.$m$$ file. Note that your plot line

is dashed with red color, the plot also should include a legend, a title, and the axis labels $$x$$

and $$fx$$