Answer
$X[-11,-5,1]$ by $Y[-3,6,1]$
Work Step by Step
1. Examine the given coordinates, we can find the minimum and maximum of each direction as $X, -10, 4$ and $Y, -2, 5$
2. Set scale=1 and the window 1 unit larger to cover the above numbers, we can get
the viewing window as $X[-11,-5,1]$ by $Y[-3,6,1]$ where the first number in the bracket represents the minimum value, the second number the maximum value, and the last number the scale.
