Given: F = {(0, 1), (2, 4), (4, 6), (6, 8)} and G = {(2, 5), (4, 7), (5, 8), (6, 9), (7, 5)}
(F - G) (6) =

Considering the given relation, the values of the subtraction when x = 6 is:
(F - G) (6) = -1.
We have to look at the two relations, to find F(6) and G(6), then subtract them, as follows:
(F - G) (6) = F(6) - G(6).
Then:
Hence the subtraction is given by:
(F - G) (6) = F(6) - G(6) = 8 - 9 = -1.
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