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2. Use the cursor keys (f, c, d, e) to move the pointer the position of the
point where you want to draw the line.
e ~ e
3. Press w to draw the line.
w
uu
uu
uTo draw a line normal to a curve in the RUN or PRGM Mode
The following is the syntax for drawing a line normal to a curve in these modes.
Normal <graph function>, <x-coordinate>
• Use the variable data (VARS) menu to specify the function to be graphed.
kk
kk
k Graphing an Inverse Function
This function lets you graph the inverse of the function used to produce your original
graph.
uu
uu
uTo graph an inverse function in the GRAPH or TABLE Mode
Example To graph the inverse of y = x(x + 2)(x – 2)
After graphing the function, display the sketch menu and press 4 (Inv).
!4(Sketch)4(Inv)
• When graphing an inverse function when there is more than one graph function
stored in memory, select one of the functions and then press w.
10 - 2 Graphing with the Sketch Function
P.33
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