Nolan says the relationship in the table is not proportional because the point (0,0) does not appear in the table

The graph shows the charges for a health club in a month. make a function table for the input-output values. writes an equation that can be used to find the total charge y for the number of x classes

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.