Math Problem Statement
write an equation for the function graphed below
Solution
The graph shown in the image depicts a rational function with vertical asymptotes and horizontal asymptotes. Here's how we can determine the equation of the function:
Observations:
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Vertical Asymptotes:
- The graph has vertical asymptotes at and .
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Horizontal Asymptote:
- The graph approaches a horizontal line as . It appears to be approaching .
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Intercepts and Behavior:
- The graph crosses the x-axis around and the y-axis around .
Based on these observations, the function can be modeled by a rational function of the form:
Here, is a constant that scales the function vertically and adjusts the intercept, and is a constant that shifts the function vertically.
Equation Form:
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Vertical Asymptotes: The factors in the denominator ensure the vertical asymptotes at and .
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Horizontal Asymptote: For the horizontal asymptote , the function should be shifted up by 1. Hence, .
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Intercepts: To match the intercept at and behavior, we need to find the correct value of .
Function Derivation:
Let’s start with:
To find the value of :
- We can check the y-intercept by substituting : If the y-intercept is , then:
So, the equation for the function is:
Final Answer:
Would you like further details or have any questions?
Here are some related questions to explore further:
- What is a rational function, and how do its asymptotes affect its graph?
- How do you determine the vertical asymptotes of a rational function?
- What is the significance of the horizontal asymptote in a rational function?
- How do intercepts help in determining the equation of a function?
- Can you explain the behavior of the function near its asymptotes?
- What are the general steps to finding the equation of a rational function given its graph?
- How does the constant in the numerator affect the graph of a rational function?
- How do you verify the equation of a function by comparing it to its graph?
Tip: Always check both the intercepts and asymptotic behavior when deriving the equation of a rational function from its graph.
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Math Problem Analysis
Mathematical Concepts
Rational Functions
Vertical Asymptotes
Horizontal Asymptotes
Intercepts
Formulas
Rational function form y = \frac{a(x + 1)}{(x + 3)(x - 2)} + b
Theorems
-
Suitable Grade Level
Advanced High School
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