Math Problem Statement

Determine whether the following function is a polynomial function. If the function is a polynomial, state its degree. If it is not, tell why not. Write the polynomial in standard form. Then identify the leading term and the constant term. g(x) = (3 - x^2) / 4 Determine whether g(x) is a polynomial or not. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

Solution

Let's analyze the given function g(x)=3x24g(x) = \frac{3 - x^2}{4}.

Step 1: Determine if g(x)g(x) is a polynomial

  • A polynomial function consists of terms where the variable xx has only nonnegative integer exponents. Additionally, there should be no division by a variable.

Here:

  • g(x)=3x24g(x) = \frac{3 - x^2}{4} can be rewritten as: g(x)=34x24g(x) = \frac{3}{4} - \frac{x^2}{4} Since the denominator 4 is a constant and not a variable, this expression is equivalent to a sum of terms with xx-terms having nonnegative integer exponents.

Thus, g(x)g(x) is a polynomial.


Step 2: Degree of the polynomial

The degree of a polynomial is determined by the highest power of xx.

  • Here, the term with the highest power of xx is x24-\frac{x^2}{4}, where the power is 22.

So, the degree of the polynomial is 2.


Step 3: Leading term and constant term

  • The leading term is the term with the highest degree, which is: x24.-\frac{x^2}{4}.
  • The constant term is the term without xx, which is: 34.\frac{3}{4}.

Final Answer:

  • g(x)g(x) is a polynomial.
  • Degree: 2.
  • Leading term: x24-\frac{x^2}{4}.
  • Constant term: 34\frac{3}{4}.

Correct Choice:

  • A. It is a polynomial of degree 2.

Do you need further clarification? Let me know if you'd like me to explain any step!

Related Questions:

  1. What makes a function not a polynomial?
  2. How can you identify the degree of a polynomial from its standard form?
  3. What are the leading term and constant term in a polynomial?
  4. How do you simplify a rational expression where the denominator is a constant?
  5. Why does division by a variable disqualify a function from being a polynomial?

Tip:

The degree of a polynomial is always determined by the term with the largest exponent of xx. Always simplify the function first!

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Math Problem Analysis

Mathematical Concepts

Polynomials
Algebraic Expressions
Degree of a Polynomial

Formulas

Standard form of a polynomial: ax^n + bx^(n-1) + ... + constant

Theorems

Definition of a polynomial: no division by variables and only nonnegative integer powers of x

Suitable Grade Level

Grades 8-10