1. Given that f(x) = {(1, 3), (2, 9), (5, 7), (11, 9)} and g(x) = {(2, 8), (3, 1), (4, 5), (9, 1), (11, 0)} Determine the following. [5 marks]

a. f(x) + g(x) b. g(x)-f(x) c. f(x) x g(x) d. f(x) g(x) e. fog(x) Un