Operation Manual

Chapter 8: Draw Instructions 126
Drawing Line Segments
Setting Graph Styles
This table describes the graph styles available for drawing line segments. Use the styles to visually
differentiate line segments. You can also set the line color.
Note: All graph styles are not listed; use
~ in the spinner menu to view the line styles offered for each
command.
Shading Above and Below
When you select é or ê for two or more functions, the TI-84 Plus C rotates through four shading
patterns.
• Vertical lines shade the first function with a é or ê graph style.
• Horizontal lines shade the second.
• Negatively sloping diagonal lines shade the third.
• Positively sloping diagonal lines shade the fourth.
• The rotation returns to vertical lines for the fifth é or ê function, repeating the order described
above.
When shaded areas intersect, the patterns overlap.
Drawing a Line Segment Directly on a Graph
To draw a line segment when a graph is displayed, follow these steps.
1. Select
2:Line( from the DRAW menu.
Note: Line( is also available from the CATALOG menu.
2. Press t b to change the color and line style using spinner menus (the default is thick line).
3. Place the cursor on the point where you want the line segment to begin, and then press Í.
4. Move the cursor to the point where you want the line segment to end. The line is displayed as you
move the cursor. Press Í.
To continue drawing line segments, repeat steps 2, 3 and 4. To cancel
Line(, press ‘.
Note: You can change the STYLE as long as the menu is active.
Icon Style Description
ç Thin A solid line connects plotted points
è Thick A thick solid line connects plotted points; this is the default.
é Above Shading covers the area above the graph
ê Below Shading covers the area below the graph