Which set of ordered pairs represents a function? a. {(1, 6), (3, 2), (4, 7), (3, 4)} b. {(4, 1), (3, 2), (3, 3), (1, 4)} c. {(1, 6), (2, 2), (4, 7), (3, 2)} d. {(1, 2), (1, 3), (1, 4), (1, 5)} the table shown represents a function. x f(x) 1 6 2 7 3 8 4 9 5 10 which equation represents the function shown in the table? a. f(x)=x+5 b. f(x)=7 c. f(x)=6 d. f(x)=x+4