Texas Instruments TI-89 Voyage 200, User Manual

Page: 495 / 1008

Additional Graphing Topics 495
2. As necessary, use
D
and
C
to select the applicable function.
Note:
To set the tangent point, you can also type its
x
value and press
¸
.
Drawing a Line Based on a Point and a Slope
Drawing a Line Based on a Point and a Slope Drawing a Line Based on a Point and a Slope
Drawing a Line Based on a Point and a Slope
To draw a line through a specified point with a specified slope, execute the
DrawSlp
command from the Home screen or a program. Use the syntax:
DrawSlp x
,
y
,
slope
You can also access
DrawSlp
from the Graph screen.
1.
2
ˆ
and select
6:DrawSlp
. This switches to the Home screen and puts
DrawSlp
in the
entry line.
3. Move the cursor to the tangent point, and
press
¸
.
The tangent line is drawn, and its
equation is displayed.
2. Complete the command, and press
¸
.
The calculator automatically switches to
the
Graph
screen and draws the line.
DrawSlp 4,0,6.37