Answer
$X_{max}=-10,X_{min}=-22,Y_{max}=8,Y_{min}=4,X_{scl}=2,Y_{scl}=1.$
Work Step by Step
As we can see on the figure: $X_{max}=-10,X_{min}=-22,Y_{max}=8,Y_{min}=4.$
There are $6$ sections on the "x-axis", hence $X_{scl}=\frac{X_{max}-X_{min}}{6}=\frac{-10-(-22)}{6}=2.$
There are $4$ sections on the "y-axis", hence $Y_{scl}=\frac{Y_{max}-Y_{min}}{4}=\frac{8-4}{4}=1.$
Thus $X_{max}=-10,X_{min}=-22,Y_{max}=8,Y_{min}=4,X_{scl}=2,Y_{scl}=1.$
