If we change the shape of an object from a sphere to a cylinder, the volume of the cylinder will remain unchanged if the cylinder has the same volume as the sphere. This means that the product of the cylinder's radius and height (πrh) is equal to the volume of the sphere ((4/3)πr³).
A constant function is a function whose output value is always the same, regardless of the input. In other words, a function f(x) is constant if f(x) = k, where k is a constant.
A function whose range consists of just one element is called a constant function because it maps every input to the same output value.