The vertical axis of a demand curve shows.
a the price of a product.
b the supply of a product.
c the interest in a product.
d the production cost of a product.

The vertical axis shows The price of a product ( A )

Explanation:

The demand curve is a graph showing the relationship between the price of a product ( Y ) axis and the demand for the product ( X ) axis.

The lower the prices the higher the number of products been demanded for ( this is how the demand curve works ). at the point where the demand curve meets the supply curve is called an equilibrium point. at this point price is said to be neutral to both suppliers and consumers.

attached to this is a picture of a demand curve to elaborate more.

they work in some type of way

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