By looking at the function, we can tell the slope is 4/1, and the y-intercept is -9.
By this, we can find the y value for the ordered pair beginning with x-6
0, -9
1, -5
2, -1
3, 3
4, 7
5, 11
6, 15
The y value for the ordered pair beginning with x-6 should be 15.