The long-run average cost curve is tangent to a series of short-run average fixed cost curves.

Long-Run Average Cost Curve

A graphical representation showing the minimum average cost at which any output level can be produced when all inputs are variable in the long run.

Short-Run

A timeframe in economics where at least one input, such as capital or labor, is fixed, limiting the ability of businesses to adjust production immediately.

Tangent

In economics, it represents a point where two curves touch, often used in optimization problems to find equilibrium points.