Hello, fellow economists! Let's dive into an exciting tale of how price affects how much we want to buy! Our guide for today's adventure will be a thing called the 'Demand Curve'.

Imagine standing on a skateboard ramp. You start at the top (on the left), and you swoosh down to the right - that's our demand curve, a line sliding from top left to bottom right. The demand curve shows how the quantity of a good that people want (or 'demand') changes as the price changes. The higher the price, the less people want, hence the slide downwards!

This is because of the law of demand. When the price of an item increases, people generally want less of it (and vice versa). So, on the vertical 'up-down' axis of our graph, we have the price, and on the horizontal 'left-right' axis, we have the quantity demanded. Higher prices up top, lower demand at the right - hence the slope! It's like taking the skateboard down the ramp - the higher the price (up the ramp), the less we want to buy (down we go!).