Answer
$X_{max}=5,X_{min}=-11;\\
Y_{max}=6,Y_{min}=-3;\\
X_{scl}=1,Y_{scl}=1$
Work Step by Step
If we select:
$X_{min}$ to be lower than all $x$-coordinates of the points (e.g., $5$);
$X_{max}$ to be greater than all $x$-coordinates of the points (e.g., $11$);
$Y_{min}$ to be lower than all $y$-coordinates of the points (e.g., $-3$);
$Y_{max}$ to be greater than all $y$-coordinates of the points (e.g., $6$);
and set $X_{scl}=1, Y_{scl}=1$; then we get a good solution.
Thus, we can set
$X_{max}=5,X_{min}=-11;\\
Y_{max}=6,Y_{min}=-3;\\
X_{scl}=1,Y_{scl}=1$
