Vertical scaling

Vertical scaling

TGM Original

In the following standard cases, \(a>1\). Replacing \(y\) controls a vertical scale; replacing \(x\) controls a horizontal scale.

Scale factor \(\dfrac1a\) parallel to the \(y\)-axis

\(y=\mathrm{f}(x)\)

\(y=\dfrac1a \mathrm{f}(x)\)

Scale factor \(a\) parallel to the \(y\)-axis

\(y=\mathrm{f}(x)\)

\(y=a\mathrm{f}(x)\)

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