11 Questions Polynomials: 9th grade polynomial vocabulary Vocabulary terms used to describe features of polynomial expressions. Based on TEKS [Algebra 1] standard 10 and high school Common Core standard A-SSE.A.1a., grade9 For 2x^3, what is the number 2 called? coefficient exponent variable How many terms are in the polynomial x^3 + x^2 − 3x − 4? 3 4 7 10 What is the variable in the expression 3m^2 + 5? 2 3 5 m … and 8 more awesome questions! Check them out by clicking “Play”.