Math Problem Statement
y = sec(x) and the point (3,2) are shown. Graph y= - sec(3x) and the transformation of the point.
Solution
The graph of is a transformation of the graph of . We can break this transformation into two main steps:
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Horizontal compression: The factor of inside the secant function compresses the graph horizontally by a factor of . This affects the period of the secant function, reducing it from (for ) to (for ).
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Vertical reflection: The negative sign in front of the secant function reflects the graph over the x-axis.
Transformation of the Point :
To find the transformed point from on the graph of , we apply the same transformations to the x and y coordinates.
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Horizontal compression: The x-coordinate is compressed by a factor of . Therefore, becomes:
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Vertical reflection: The y-coordinate is reflected across the x-axis, so becomes:
Thus, the transformed point is .
Final Transformed Graph
The graph of will appear as a compressed and flipped version of the original secant graph. The transformed point is .
Would you like a graph of this transformation, further details on any steps, or explanations on secant function properties?
Here are 5 related questions:
- How does the period of compare to ?
- What are the asymptotes for and ?
- How does a horizontal compression affect the shape of periodic functions?
- What other transformations could you apply to ?
- How does the transformation of points change with horizontal or vertical shifts?
Tip: For transformations, always handle horizontal changes (inside the function) and vertical changes (outside the function) separately to avoid confusion!
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Math Problem Analysis
Mathematical Concepts
Trigonometry
Secant Function
Transformations
Formulas
y = sec(x)
y = -sec(3x)
Horizontal compression factor: 1/3
Vertical reflection across the x-axis
Theorems
Transformation of trigonometric functions
Period of secant function: 2π
Effect of horizontal compression on the period
Suitable Grade Level
Grades 10-12
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