Functions by Formulas and Graphs

The Difference Quotient

$\rhd$ Example 1 (3:19) (a) Let $f(x)=2x-5$ , find $f(x+h)-f(x)$ . (b) Let $f(x)=3x+2$ , find the difference quotient $\dfrac{f(x+h)-f(x)}{h}$ .
$\rhd$ Example 2 (4:34) Let $f(x)=2x^2-x+5$ , find and simplify the difference quotient $\dfrac{f(x+h)-f(x)}{h}$ .

Analyzing Graphs

$\rhd$ The graph of a function (19:01) Given the graph of a function, find the domain, the range, pre-images and images.

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Functions by Formulas and Graphs

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The OpenLab at City Tech:A place to learn, work, and share

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