The degree of the polynomial trendline can also be determined by the number of bends on a graph. A polynomial is a mathematical expression consisting of a sum of terms each term including a variable or variables raised to a power and multiplied by a coefficient. Constants like 3 or 523.
A2x2 a1x1 ax.
An algebraic expression consisting of one or more summed terms each term consisting of a constant multiplier and one or more variables raised to nonnegative integral powers. A polynomial is a linear combination of natural powers of the variable. Anxn an-1xn-1. In mathematics a polynomial is an expression consisting of variables and coefficients that involves only the operations of addition subtraction multiplication and non-negative integer exponentiation of variables.