How is the demand for pizza different from the demand for pizza cooks?

The law of supply states that there is a positive relationship between the price of a good and the quantity supplied (supply curves representing the price and quantity demanded). From a business owners standpoint, if I was wanting to sell more of a good, I would want to lower the price. This doesnt make sense to me. In my head more quantity should mean lower price.

suppose pizzas and burgers are substitutes. what will definitely happen if there is an increase in the price of pizza? a. demand for burgers will increase. b. supply of burgers will decrease. c. demand for burgers will decrease. d. supply of burgers will increase.

Ⓒ Macmillan Learning If the price of gasoline rises, what response do you expect in the market for SUVs? Shift the demand curve to show what happens in the market for SUVs when the price of gasoline rises. Price Market for SUVS Demand for SUVS Quantity of SUVS