Texas Instruments TI-73VSC Guidebook - Page 198
Horizontal and Vertical from the Graph Screen, Horizontal and Vertical from the Home Screen or,
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192 Chapter 10: Drawing Horizontal and Vertical from the Graph Screen To draw a horizontal or vertical line on the Graph screen: 1. From the Graph screen, select 2 3 or 4. The cursor appears in the middle of the Graph screen. The X- and Y-coordinates are shown at the bottom of the screen. 2. A line is displayed that moves as you move the cursor. Place the cursor on the Y-coordinate (for horizontal lines) or the X-coordinate (for vertical lines) through which you want the line to pass. 3. Press b to draw the line on the graph. 4. Repeat steps 2 and 3, as necessary. To cancel Horizontal or Vertical, press :. ³ Draw a horizontal line from the Graph screen. *2123 # $ (as necessary) b ' is set to standard default values. ³ Draw a vertical line from the Graph screen. *24 " ! (as necessary) b Horizontal and Vertical from the Home Screen or Program Editor From the Home screen or the Program editor, Horizontal draws a horizontal line at Y=y. y can be an integer or an expression. Horizontal y