Solution
for this case we can see that for
Figure 0 = 6 tiles
Figure 1 = 7 tiles
Figure 2 = 8 tiles
Figure 3= 9 tiles
Figure 4 = 10 tiles
Figure 5= 11 tiles
Then the table would be given by:
Figure number (x) 0 1 2 3 4 5 x
Number of tiles (y) 6 7 8 9 10 11 6+x
And the line should be like this: