I have a hard time recognizing transformations of functions.

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SUMMARY

This discussion focuses on recognizing transformations of functions, specifically vertical expansions and horizontal compressions. Key strategies include identifying invariant points, which remain unchanged during transformations. For instance, if a function appears stretched but the y-axis points remain fixed, it indicates a horizontal compression or expansion. Understanding these concepts is essential for mastering function transformations in mathematics.

PREREQUISITES
  • Understanding of basic function transformations
  • Familiarity with vertical and horizontal shifts
  • Knowledge of invariant points in functions
  • Basic algebraic manipulation skills
NEXT STEPS
  • Study vertical and horizontal transformations of functions in detail
  • Learn about invariant points and their significance in function analysis
  • Practice identifying transformations through graphing exercises
  • Explore advanced function transformation techniques, such as piecewise functions
USEFUL FOR

Students studying algebra, mathematics educators, and anyone looking to improve their understanding of function transformations.

Intr3pid
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hello everyone

can anyone give me any tips on recognizing compressions and expansions of functions? ie. vertical expansion, horizontal compression
 
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Look for invariant points.
Example: if you are given a function that has been stretched in some way, but the points on the y-axis have not moved, you know it was a horizontal compression/expansion.
 

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