Question

Identify the coefficient of each term of the polynomial.

Answer 1

There are two parts of an equation (including this one), the coefficient, and the variable. 
The coefficient is a known number, written as a digit, whereas the variable is an unknown number, written as a letter to signify an unknown number.

So, the coefficient in the first term (or part of the equation) is -2. The coefficient in the second term is 9, and the variable in this equation is x.