69
Graphing Chapter 4
In the RUN or PRGM Mode
Example To draw a line perpendicular to the x-axis from point (x, y) = (2, 6)
on the graph y = 3x
Use the following View Window parameters:
Xmin = –2 Ymin = –2
Xmax = 5 Ymax = 10
Xscl = 1 Yscl = 2
1. After drawing the graph, use the procedure under “To plot points” to move the
pointer to (x, y) = (2, 0), then use the cursor key (f) to move the pointer on the
graph y = 3x.
!4(SKTCH)3(Plot)
c,awwf~f
2. Display the sketch menu and perform the following operation to draw a straight
line between the two points.
u
!4(SKTCH)4(Line)w
• The above draws a straight line between the current pointer location and the
previous pointer location.
uu
uu
uTo draw vertical and horizontal lines
The procedures presented here draw vertical and horizontal lines that pass through
a specific coordinate.
In the STAT, GRAPH or TABLE Mode
Example To draw a vertical line on the graph of y = x(x + 2)(x – 2)
1. After graphing the function, display the sketch menu and perform the following
operation to display the pointer and draw a vertical line through its current loca-
tion.
!4(SKTCH)[1(Vert)
To Next Page
Loading...
Need help?
General
