Answer:
Poem:
Function is binary relation of two sets
have a single output but
not Function is having no function
have multiple output.
Range is a function refer to two closely concepts
but
Domain is a set of possible input values with concepts.
All the function are relation but
not all relation are function.
Relation is a collection of ordered pair but
imaginary is a collection of complex number written in imaginary unit.
Vertical line is parallel to y-axis but
horizontal line is parallel to x-axis.