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Additional Graphing Topics

Additional Graphing TopicsAdditional Graphing Topics

Additional Graphing Topics

From the Home screen, graph the piecewise defined function: y = Lx when x < 0 and

y=5cos(x) when x‚ 0. Draw a horizontal line across the top of the cosine curve. Then

save a picture of the displayed graph.

Steps and keystrokes Display

1. Display the MODE dialog box. For Graph

mode, select

FUNCTION. For Angle mode,

select

RADIAN.

Press 3 B 1 D D D B 1 ¸

2. Display the Home screen. Use the

Graph

command and the

when function to

specify the piecewise defined function.

†

2 selects Graph from the Other toolbar

menu and automatically adds a space.

Press " † 2 2 ™ WHEN j

c X 2 Â 0 b ? X b 5 p 2 X X

d d

3. Execute the

Graph command, which

automatically displays the Graph screen.

The graph uses the current Window

variables, which are assumed to be their

standard values („

6) for this example.

Press ¸

Graph when(x<0,Lx,

…cos(x))

Texas Instruments Titanium TI-89 User Manual

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