Answer:
7
8
9
Step-by-step explanation:
The table basically means for you to add 6 to whatever is in the x column.
The x+6 column can be represented as many forms, of which will come up in Algebra, PreAlgebra, Geometry (mostly), Trigonometry, and the different forms of functions, f(x) and other stuff.
Since you add 6 to whatever you put in the next row,
1+6 = 7
2+6=8
3+6=9
