Math Problem Statement

For the function​ f(x), find the maximum number of real​ zeros, the maximum number of​ x-intercepts, and the maximum number of turning points that the function can have.

​f(x)equals=x Superscript 6 Baseline minus x squared plus 9

Solution

Given the function f(x)=x6x2+9f(x) = x^6 - x^2 + 9, we can determine the following:

1. Maximum Number of Real Zeros:

The maximum number of real zeros corresponds to the degree of the polynomial, which is the highest power of xx. Since the degree of f(x)f(x) is 6, the function can have up to 6 real zeros. However, we must note that not all of these zeros must be real; some could be complex.

2. Maximum Number of xx-Intercepts:

The maximum number of xx-intercepts corresponds to the number of real zeros of the function. As mentioned, the function can have up to 6 xx-intercepts, assuming all zeros are real.

3. Maximum Number of Turning Points:

The maximum number of turning points (local maxima and minima) is given by n1n - 1, where nn is the degree of the polynomial. For f(x)=x6x2+9f(x) = x^6 - x^2 + 9, the degree is 6, so the function can have at most 61=56 - 1 = 5 turning points.

Summary:

  1. Maximum number of real zeros: 6
  2. Maximum number of xx-intercepts: 6
  3. Maximum number of turning points: 5

Would you like more details or further clarifications on this?

5 Related Questions:

  1. How do we determine if a polynomial function has complex roots?
  2. Can a polynomial with real coefficients have an odd number of turning points?
  3. What happens when all the zeros of a polynomial are complex?
  4. How do the multiplicities of roots affect the graph of a polynomial?
  5. What is the role of the leading coefficient in determining the end behavior of a polynomial?

Tip: The number of turning points is always one less than the degree of the polynomial, but it doesn't guarantee that all turning points are real.

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Math Problem Analysis

Mathematical Concepts

Polynomials
Zeros of Functions
Turning Points
X-Intercepts

Formulas

The maximum number of real zeros of a polynomial corresponds to its degree
The maximum number of turning points is given by n - 1, where n is the degree of the polynomial

Theorems

Fundamental Theorem of Algebra: A polynomial of degree n has exactly n roots (real or complex)
Turning Point Theorem: A polynomial of degree n can have at most n - 1 turning points

Suitable Grade Level

Grades 10-12