Math Problem Statement
Solution
The given problem involves identifying the correct piecewise-defined function based on the graph. Let's analyze the graph and find the function.
Steps to solve:
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Left segment (from to ): This is a straight line with negative slope, going from to .
We can find the equation of the line using the slope-intercept form: where is the slope and is the y-intercept.
The slope between points and is: So, the equation of the line is:
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Right segment (from to ): This is a straight line with a negative slope, going from to .
The slope is: So, the equation of the line is:
Now, let's match these equations with the given options.
- For , the equation is which simplifies to .
- For , the equation is , which is close to .
Conclusion:
Option A correctly represents the piecewise function with:
- for
- for
Answer: A
Do you have any questions or want more details on this?
Here are 5 questions to expand the concept:
- How do you determine the slope of a line given two points?
- Why do piecewise functions use different equations for different intervals?
- How can we verify if a point lies on a specific piece of a piecewise function?
- How would the graph change if the slopes of the segments were different?
- How do you write a piecewise function that includes vertical or horizontal lines?
Tip: When working with piecewise functions, make sure to carefully analyze the slope and intercept for each segment.
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Math Problem Analysis
Mathematical Concepts
Piecewise Functions
Linear Equations
Formulas
Slope formula: m = (y2 - y1) / (x2 - x1)
Linear equation: y = mx + b
Theorems
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Suitable Grade Level
Grades 9-12