State the equation of f(x) if D=xinR|x!=(2)/(3) and the y-intercept is (0,(1)/(2)).

a) f(x) = (x - 1)/(3x - 2)
b) f(x) = (2x + 1)/(3x - 2)
c) f(x) = (x + 1)/(3x + 2)
d) f(x) = (2x + 1)/(3x + 2)