Understanding Polynomials

What is a key characteristic of a polynomial regarding the exponent of its variables?

• The exponent must be a fraction.

• The exponent must be zero.

• The exponent must be a whole number.

• The exponent must be negative.

Why is the number 6 considered a polynomial?

• Because it can be expressed as 6x^0.

• Because it is a variable.

• Because it is a negative number.

• Because it is a fraction.

Which of the following is not a polynomial?

• b^3

• x^1/3

• 6

• x^2

Why is an expression with a square root not considered a polynomial?

• Because it is a constant.

• Because it is a whole number.

• Because it is a negative number.

• Because it can be rewritten with a fractional exponent.

What happens to the exponent of a variable when it is in the denominator?

• It becomes a fraction.

• It becomes negative.

• It becomes zero.

• It remains the same.