Finite Chapter 1.2

Finite Chapter 1.2 - 1.2: Functions from the Graphical...

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Math 120 SP08 SBrodnick 1 1 1.2 : Functions from the Graphical Viewpoint 2 1.2: Functions from the Graphical Viewpoint Examples : 1. (see graph) What is… f(-2)? f(0)? f(4)? 2.(see graph) What is… f(-4)? f(-2)? f(1)? f(5)? domain of f? range of f? domain of f? range of f? 3 * Reminder : a function has one (and only one) output for each input. (can’t input 4 and get two different outputs.) * Easy way to tell if graph is a function: it passes Vertical Line Test * Evaluating functions on your calculator… Enter equation into Y 1 2 nd TRACE Read Y-values on table
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Unformatted text preview: 1.2: Functions from the Graphical Viewpoint 4 Example : 3.Graph g(x) = -x - 8x 11 and evaluate a. g(-1) b. g(3) c. g(9) d. g(-8) + g(4) d. is g a function? 1.2: Functions from the Graphical Viewpoint 5 *Graphing Piecewise Functions: Examples : 4.Graph f(x) = 5.Graph f(x) = * Functions that you should know by heart : P. 50 & 51 x - 2 if x -1-2x if x > -1 1.2: Functions from the Graphical Viewpoint 3x if x -2 x if -2 < x 3-x + 1 if x > 3...
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