Answer: monomial
Explanation:
You need to classify the polynomial 9x.
We need to keep in mind that the basic classifications of polynomials are:
Monomials
Binomials
Trinomials
Polynomials
What are monomials?
Monomials are expressions with one term.
What are binomials?
Binomials are expressions with two terms.
What are trinomials?
Trinomials are expressions with three terms.
What are polynomials?
Polynomials are expressions with four or more terms.
How many terms does 9x have?
It has only one term. So it's a monomial.
it is a monomial