If a rise in the price of good B increases the quantity demanded of good A
A) A and B are substitutes.
B) A and B are complements.
C) A is a substitute for B, but B is a complement to A.
D) B is a substitute for A, but A is a complement to B.
Question 2
A graph measures y on the vertical axis and x on the horizontal. The curve on the graph is a vertical line. From this fact we know that
A) the value of x does not change when the value of y changes.
B) the value of y is constant.
C) the ratio of x to y is constant.
D) the ratio of y to x is constant.
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