"According to the law of demand, with everything else being equal, the quantity demanded for a good or service will as the price increases."

Decrease

Explanation:

According to the Law of  Demand, The quantity demanded for purchase of a commodity inversely varies with the price.

That is to say that "ceteris paribus" ( with everything being equal),When the prices of a particular good go higher, people will buy less of such commodity but will buy more, if the prices of the goods reduces.

We can say demand is elastic if quantity demanded for a commodity decreases with increase in price which will make people choose another  lower substitute good eg, detergent, ice cream

Also if  quantity demanded does not change much with increase in price , then it is referred to as Inelastic Demand  for example necessity commodity such as gasoline.

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