Answer:
{ x | 1, 2, 3, 4, 5, 6, 7, 8, 9 }
Step-by-step explanation:
We note that points between integer values have been excluded, so domain consists of integer x-values from 1 to 9, or
and <em>not</em>
1 <= x <= 9
5 right and down 3 and (0 means the middle) so middle down 4
lit : )
