K(y)

Definition

In this context, k(y) represents one inner function that defines part of the region being rotated around an axis. It is given by k(y) = 3y.

Related terms

Inner Radius: Referring to k(y), it represents half the distance between g(y) and k(y) in terms of distance from the axis of rotation.

Outer Function:

In this case, g(y) acts as an outer function since it surrounds and contains k(y). It determines how far from the axis our washers will be formed.

Concentric Circles: A term used to describe circles that share a common center but have different radii, similar to how g(x) and k(x) form concentric circles when rotated around an axis.