Math Problem Statement
still wrong was -1/4|x+2|-1
Solution
Thank you for the clarification! Let's analyze the graph more carefully, now knowing the correct transformation is .
Step-by-Step Analysis:
-
Vertex Location:
- From the graph, the vertex is at . This indicates a horizontal shift 2 units to the left (which is represented by ) and a vertical shift 1 unit down (which is represented by the outside the absolute value).
-
Reflection:
- The graph opens downwards, so it must be reflected across the x-axis. This is why there's a negative sign in front of the absolute value term.
-
Vertical Compression:
- The slope of the "arms" of the V-shape is shallower than the standard . Normally, the slope of the absolute value graph is , but here the slope is much smaller, indicating a vertical compression. The factor tells us that the graph has been vertically compressed by a factor of 4.
Correct Equation:
Now that we have identified all the transformations:
- Reflection:
- Horizontal shift: (shift 2 units to the left)
- Vertical compression:
- Vertical shift: (shift 1 unit down)
The correct equation is indeed:
This matches the correct answer you provided.
Summary of Transformations:
- Reflection: The graph is reflected across the x-axis.
- Vertical Compression: The graph is compressed by a factor of .
- Horizontal Shift: The graph is shifted 2 units to the left.
- Vertical Shift: The graph is shifted 1 unit down.
Let me know if you'd like a deeper explanation of any of these transformations, or if you have further questions!
Related Questions:
- How would the equation change if the graph were stretched instead of compressed?
- What is the effect of changing the coefficient to another value?
- How do horizontal shifts affect the domain of an absolute value function?
- What is the domain and range of ?
- How can you graph an absolute value function with a different slope and vertex without plotting many points?
Tip:
When analyzing transformations, always break down the effects one by one (reflection, stretch/compression, and shifts) to build the final equation!
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Math Problem Analysis
Mathematical Concepts
Absolute Value Functions
Graph Transformations
Vertical and Horizontal Shifts
Reflection
Compression
Formulas
g(x) = -\frac{1}{4}|x + 2| - 1
Theorems
Transformation of Functions
Suitable Grade Level
Grades 9-11
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