Casio fx-7400G PLUS Graphing - Manual (Page 17)

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Graphing Chapter 4
2. Press 1 (BOX), and then use the cursor keys ( d, e, f, c) to move the
pointer to the location of one of the corners of the box you want to draw on the
screen. Press w to specify the location of the corner.
1(BOX)
d ~ dw
3. Use the cursor keys to move the pointer to the location of the corner that is diago-
nally across from the first corner.
f ~ f d ~ d
4. Press w to specify the location of the second corner. When you do, the part of
the graph inside the box is immediately enlarged so it fills the entire screen.
w
• To return to the original graph, press 2 (ZOOM) [ 1 (ORIG).
• Nothing happens if you try to locate the second corner at the same location or
directly above the first corner.
• You can use box zoom for any type of graph.
u uu u uTo use factor zoom
With factor zoom, you can zoom in or zoom out on the display, with the current
pointer location being at the center of the new display.
• Use the cursor keys ( d, e, f, c) to move the pointer around the display.
Example Graph the two functions below, and enlarge them five times in
order to determine whether or not they are tangential:
Y1: y = ( x + 4) ( x + 1) ( x – 3)
Y2: y = 3 x + 22