How would you sketch the graph y = af(x) ?

3 years ago

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Aimee Schaefer

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The transformation of y = af(x) has the effect of stretching or squeezing the function f(x) in the y axis. It is a vertical dilation, crunch, or stretch. For a >1, the graph is stretched. For a<1, it is squeezed. To draw it, one would multiply the entire function f(x) algebraically by the factor a.

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