Algebra II 9.3B, Horizontal Stretch & Shrink of graph & Theorem

An explanation of how a graph can stretch or shrink horizontally. If we divide x by a constant, a graph is stretched or shrunk horizontally. What it means when a domain is restricted.

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Algebra II Playlist

Algebra II 9.2B, Horizontal Translations & Absolute Value

Algebra II 9.2A, Vertical Translations & Theorem

Algebra II 9.1D, Determine EVEN or ODD Functions

Algebra II 9.1C, Symmetry with Respect to the Origin

Algebra II 9.1B, Symmetry with X and Y axis & Theorems

Algebra II 9.1B, Symmetry with X and Y axis & Theorems

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Algebra I Playlist:

Algebra I Functions and Variations Playlist, Chapter 12

Algebra I #12.4a,
What is a Quadratic Function

Algebra I #12.4b,
Graph Quadratic Function with Table of values

Algebra I #12.4c,
Graph Quadratic Function with Vertex and Axis of Symmetry

[wistfuloptimist]

Thank you so much! Beautifully presented and super helpful

[altazakin]

Your presentation of this material is so helpful and well done. Thank you. If I may ask a question, at 2:34 you describe how to change the factor of 2 into its reciprocal. While I understand the steps very well from your example, I cannot seem to wrap my head around why it is done this way. Why is the reciprocal found for this horizontal transformation (when, for example, it is not done that way for a vertical one). I can memorize the steps to do this, but I can't explain to myself why it is done. Thanks for any tips.