A consumer consumes two goods. (Ly). His budget line was described by the equation y = 30 3x. At a later time, his budget line could be described by the equation y = 10 x. The change between the earlier budget line and H.935: Iter could be explained by the fact that O the price of x and his income both decreased. 0 the price of .1: decreased and his income increased. 0 the price of x and his income both increased. 0 His utility for y decreased. 0 the price ofx increased and his income decreased