Question

normally the demand curve is ? A. upward sloping B. downward sloping C. "U" shaped D. inverted "U" shaped

Answer 1

Normally a demand curve is B) downward sloping. If we assume that money income is fixed and the price of goods falls, and the consumers can buy the goods with their money income, then rises and consumers increase their demand.

Here slopes are defined as the change of its variables and the y-axis should be divided by the change on variables of X-axis.