one of them case is wrong

code is $-----$

$\%$ Your Name

S$=[0,1,1,0,0$;$0,0,1,1,0$;$1,1,1,1,1]$; $\%$ square in homogeneous coordinates

M$=[1,0,3$;$0,1,-2$;$0,0,1]$; $\%$ translation matrix

MS$=$M$*$S; $\%$ translated square

$\%$ plot the translated square in black with linewidth $2$

plot$($MS$(1,$:$),$MS$(2,$:$),\text{'}$k$\text{'},$'LineWidth',$2)$;

hold on

$\%$ enter the reflection matrix

R $=[$cos$(2*$pi$/4),$sin$(2*$pi$/4),0$;sin$(2*$pi$/4),-$cos$(2*$pi$/4),0$;$0,0,1]$;

$\%$ apply the reflection matrix to MS

RMS $=$ R$*$MS;

$\%$ plot the reflected square RMS in red with linewidth $2$

plot$($RMS$(1,$:$),$RMS$(2,$:$),\text{'}$r$\text{'},$'LineWidth',$2)$;

$\%$ plot the line y $=$ x using the given command

plot$([-3,5],[-3,5])$;

$\%$ add a legend like in the reference figure

legend$(\text{'}$translated square','reflected square','line y $=$ x$\text{'},$'location','southwest'$)$;

axis$([-3,5,-3,5])$; $\%$ rescale the axis

axis square; $\%$ adjust aspect ratio of figure

grid on; $\%$creates grid

pls do correct i will upvote otherwise downvote