Answer
$X_{max}=50,X_{min}=-30,Y_{max}=50,Y_{min}=-90,X_{scl}=10,Y_{scl}=10.$
Work Step by Step
If we select:
$X_{min}$ to be lower than all x-coordiantes of the points,
$X_{max}$ to be greater than all x-coordiantes of the points,
$Y_{min}$ to be lower than all y-coordiantes of the points,
$Y_{max}$ to be greater than all y-coordiantes of the points,
$X_{scl}=10, Y_{scl}=10$ then we get a good solution. Thus $X_{max}=50,X_{min}=-30,Y_{max}=50,Y_{min}=-90,X_{scl}=10,Y_{scl}=10.$
