Math Problem Statement
Solution
Let's break down the problem to find the appropriate form of the function .
Given information:
- Vertical asymptotes at and .
- Horizontal asymptote at .
- x-intercepts at and .
- The graph passes through the point .
Step-by-step solution:
-
Vertical asymptotes:
- These occur where the denominator of a rational function equals zero.
- Thus, the factors and should be in the denominator.
-
Horizontal asymptote:
- The horizontal asymptote is , which suggests the degree of the numerator and denominator must be the same.
- To have a horizontal asymptote of , the leading coefficient of the numerator must be 2 times that of the denominator.
-
x-intercepts:
- These occur when the numerator equals zero.
- The x-intercepts are at and , so the numerator must include the factors and .
-
Equation form:
- The equation should resemble the third option:
- Substituting the known intercepts and asymptotes:
-
Determine :
- Since the function passes through the point , substitute and to find : Simplifying:
Final equation:
Let me know if you would like more details, and here are 5 related questions:
- How do you determine horizontal asymptotes in rational functions?
- What conditions lead to a vertical asymptote in a rational function?
- How can you find the x-intercepts of a rational function?
- What happens to the graph of a rational function at points where the numerator equals zero?
- Why is the horizontal asymptote affected by the degrees of the numerator and denominator?
Tip: Always check for points where the function is undefined to determine vertical asymptotes!
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Math Problem Analysis
Mathematical Concepts
Rational functions
Asymptotes
x-intercepts
Factorization
Formulas
Vertical asymptotes occur where the denominator equals zero.
Horizontal asymptote for a rational function occurs when degrees of numerator and denominator are equal.
Theorems
The behavior of rational functions at vertical and horizontal asymptotes
Zeros of rational functions and x-intercepts
Suitable Grade Level
Grades 10-12
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