The shape of rectangular hyperbola is made by

The correct answer is: None of the above.

A rectangular hyperbola is a type of hyperbola that has two axes of symmetry that are perpendicular to each other. The shape of a rectangular hyperbola is made by the intersection of a plane and a cone. The plane intersects the cone at two points, and the hyperbola is the curve that passes through these two points.

The marginal cost (MC) is the additional cost incurred by producing one more unit of output. The average fixed cost (AFC) is the total fixed cost divided by the number of units produced. The average variable cost (AVC) is the total variable cost divided by the number of units produced.

None of these costs are directly related to the shape of a rectangular hyperbola.