Hi, My name is Sarah, My question is at the junior level.

My question is, what is a polynomial?

THANK YOU!

A polynomial is a certain kind of function. Quadratics are polynomials, for example

as well as cubics like

and linear functions such as

.

A polynomial is any function that can be written

where n is a positive integer and are real numbers.

Examples of functions that are not polynomials are

and

Cheers,
Harley