Texas Instruments TI-84 - Manual (Page 198)

Chapter 8: Draw Instructions 195
DrawInv expression
Note: You cannot use a list in expression to draw a family of curves.
Shading Areas on a Graph Shading Areas on a Graph Shading Areas on a Graph Shading Areas on a Graph
Shading a Graph Shading a Graph Shading a Graph Shading a Graph
To shade an area on a graph, select 7:Shade( from the DRAW menu. The instruction is
pasted to the home screen or to the program editor.
Shade( draws lowerfunc and upperfunc in terms of X on the current graph and shades the
area that is specifically above lowerfunc and below upperfunc . Only the areas where
lowerfunc < upperfunc are shaded.
Xleft and Xright , if included, specify left and right boundaries for the shading. Xleft and
Xright must be numbers between Xmin and Xmax , which are the defaults.