Your sandbox for economics graphs. Drag curves, change taxes and prices, and watch what happens to price, quantity, surplus and profit. Free, no account needed.
Change the graph and watch what happens. Nothing here is graded, so try anything.
Watch marginal product and marginal cost mirror each other. When a new worker adds more than the last one, each extra smoothie costs less. Once diminishing returns set in, MC climbs.
You can also drag market demand left or right on the graph.
Slide right for a tax, left for a subsidy.
Drag the round handle on the demand curve to rotate it around the equilibrium.
Drag a curve to move it. On a keyboard, press Tab to reach a curve, then use the arrow keys.
Six sample questions. Drag the curve you think moves, then check your answer.
Drag a curve to move it. On a keyboard, press Tab to reach a curve, then use the arrow keys.
Every graph you need for the course, with the versions exam questions ask about. Tap to open, then choose a version to redraw it.
A question in the bank stores a short graph description instead of an image. The engine draws it, and for drag questions it also checks the answer.
That means one change to the engine updates every graph on the site, and new questions need no new artwork.
AP® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this site.