Respuesta :

A curve that is derived by summing horizontally individual demand curves is called market demand curve.

The quantity acquired by all buyers and sellers total of the individual demands—gives "the market demand for each price". Because the sum is calculated over the quantities for each price, this is commonly referred to as a "horizontal sum". The horizontal (quantity) sum of each individual supply curve represents the market supply.

The market demand curve is just the horizontal addition of each consumer's particular demand curves for lattes. When you sum horizontally, you are totaling amount demanded rather than price. You must multiply the quantity by the total market demand at each price point.

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