Math Problem Statement

the zeros of a cubic function are -2,3, and 4/3 give the factors of the function

Solution

To find the factors of a cubic function given its zeros, we can use the fact that if x=ax = a, then (xa)(x - a) is a factor of the function.

Given the zeros 2-2, 33, and 43\frac{4}{3}, the factors of the cubic function are:

(x+2),(x3),(x43)(x + 2), (x - 3), \left( x - \frac{4}{3} \right)

To express the function in a simpler form, we can eliminate the fraction in the third factor by multiplying it by 3:

3(x43)=(3x4)3 \left( x - \frac{4}{3} \right) = (3x - 4)

Thus, the factors of the function are:

(x+2),(x3),(3x4)(x + 2), (x - 3), (3x - 4)

So, the cubic function in factored form is:

f(x)=(x+2)(x3)(3x4)f(x) = (x + 2)(x - 3)(3x - 4)

Would you like further details, or do you have any questions?

Here are 5 related questions:

  1. How can we expand the cubic function from its factored form?
  2. What does the graph of this cubic function look like?
  3. How do you determine the multiplicity of the zeros in a cubic function?
  4. How do transformations affect the graph of a cubic function?
  5. What is the relationship between the coefficients of a cubic function and its zeros?

Tip: When finding the zeros of a function, remember that each zero corresponds to a factor of the form (xa)(x - a), where aa is the zero.

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Math Problem Analysis

Mathematical Concepts

Algebra
Cubic Functions
Factoring Polynomials

Formulas

If x = a, then (x - a) is a factor of the polynomial.
Multiply by common denominators to simplify fractional factors.

Theorems

Factor Theorem

Suitable Grade Level

Grades 9-12