4x^3 + x represents a polynomial function with terms involving powers of x. The highest power is 3, and the coefficients are 4 and 1 for each term respectively.
Related terms
Polynomial: A mathematical expression consisting of variables raised to non-negative integer powers multiplied by coefficients.
Degree: The highest exponent present in any term within a polynomial determines its degree.
Coefficient: A coefficient refers to the numerical value multiplying the variable(s) in a term.