Question

Which of the following is a monomial?
A. 2x − 1
B. 4
C. 3x + 4
D. 3x2 + 2x − 1

Answer 1

4, Mono means one. A and C are binomials and D is a trinomial, so B. is the answer

Answer 2

A Polynomial would have more than one term.

So a monomial would just be one term.

Only option B, displays that. Others are polynomial.

I hope this helps and thanks for the question.

B is the answer.