The correct answer for this exercise is the las option, which is: This is a polynomial function of degree 4 with a leading coefficient of π.
A polynomial function has the form of a polynomial. Therefore, its coefficients are real numbers and the exponents, which defines the degree of the polynomials, are positive.
As you can see, the highest exponent is 4. This means that the polynomial has degree 4.
The leading coefficient is π, because multiplied by the variable with the highest exponent and it is an irrational number, therefore, it is a real number.
