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CRW KEVINDurham Cheat Sheet by

Unit Circle

Right Triangle Defini­tions

Difference Quotient

The slope formula f(x+h)­−f(x)/ h fraction f . open , x plus h , close . minus f , open x close , over h end fraction is also known as a difference quotient, and it can be expressed in several ways depending on how the coordi­nates of P and Q are labeled. For example, given the coordi­nates

Secant Line

For example, given the coordi­nates P(a,f(a)) and Q(x,f(x)) p . open . eh comma f , open eh close . close . and . q . open . x comma f , open x close . close (Figure 1.11), the difference quotient is

Triangles

 

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