Math Problem Statement
Transformation problems on a graph with answers
Solution
Here are some typical transformation problems on a graph, along with their answers:
1. Vertical Translation
Consider the function . Apply a vertical translation of 3 units upwards.
Solution: The new function after the transformation is . This translates every point of the graph of upwards by 3 units.
2. Horizontal Translation
Consider the function . Apply a horizontal translation 2 units to the right.
Solution: The new function is . This shifts the graph of 2 units to the right.
3. Reflection across the x-axis
Consider the function . Reflect the graph across the x-axis.
Solution: The new function is . This flips the graph of over the x-axis, making all positive values negative and vice versa.
4. Vertical Stretch
Consider the function . Apply a vertical stretch by a factor of 2.
Solution: The new function is . This makes the graph steeper, as all y-values are doubled.
5. Horizontal Compression
Consider the function . Apply a horizontal compression by a factor of 1/2.
Solution: The new function is . The graph is compressed horizontally, meaning the graph cycles through its period twice as fast as before.
Would you like more details or have any questions on these? Here are some related questions:
- How do you determine the direction of a horizontal translation?
- What happens to the graph of a function when it undergoes a vertical stretch?
- What is the effect of reflecting a function across the y-axis instead of the x-axis?
- Can you explain how a horizontal stretch differs from a vertical stretch?
- How does adding or subtracting a constant inside a function's argument affect its graph?
Tip: Always pay attention to whether the transformation is applied inside or outside the function to determine if it affects the x-values (horizontal changes) or y-values (vertical changes).
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Math Problem Analysis
Mathematical Concepts
Graph Transformations
Vertical Translation
Horizontal Translation
Reflection
Vertical Stretch
Horizontal Compression
Formulas
Vertical Translation: f(x) + c
Horizontal Translation: f(x - c)
Reflection across x-axis: -f(x)
Vertical Stretch: a*f(x)
Horizontal Compression: f(bx)
Theorems
Transformation Theorem
Reflection Theorem
Stretch and Compression Theorems
Suitable Grade Level
Grades 9-12
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