## Precalculus (10th Edition)

$X_{max}=110,X_{min}=-20,Y_{max}=60,Y_{min}=-10,X_{scl}=10,Y_{scl}=10.$
If we select: $X_{min}$ to be lower than all x-coordinates of the points, $X_{max}$ to be greater than all x-coordinates of the points, $Y_{min}$ to be lower than all y-coordinates of the points, $Y_{max}$ to be greater than all y-coordinates of the points, $X_{scl}=10, Y_{scl}=10$ then we get a good solution. Thus $X_{max}=110,X_{min}=-20,Y_{max}=60,Y_{min}=-10,X_{scl}=10,Y_{scl}=10.$