Determining Equations And Coordinates - Texas Instruments TI-89 User Manual

Determining Equations and Coordinates

About the Equation
& Coordinates Tool
Checking the
Equation and
Coordinates of a
Point or Line
Checking the
Equation and
Coordinates of a
Circle
TI-89 / TI-92 Plus / Voyage™ 200 PLT Cabri Geometry App
The toolbar menu contains the
Measurement
tool that generates and displays equations and
Coordinates
coordinates of lines, circles, and points.
The Equation & Coordinates
circle, or coordinates of a point with respect to a default coordinate
system. The equation or coordinates are updated when the object is
modified or moved.
1. (Optional) To display the x and y
axes, press
2Š
TI-89:
TI-92 Plus / Voyage™ 200 PLT:
select 9:Format, then select
from the
2:RECTANGULAR
option.
Axes
2. Press
2ˆ
TI-89:
TI-92 Plus / Voyage 200 PLT:
and select
5:Equation & Coordinates
3. Select the point or line whose
coordinates or equation you want to
find.
The Equation & Coordinates
with respect to a default coordinate system. The equation or
coordinates are updated when the object is modified or moved.
1. (Optional) To display the x and y
axes, press
2Š
TI-89:
TI-92 Plus / Voyage 200 PLT:
select then select
9:Format,
from the
2:RECTANGULAR
option.
Axes
2. Press
2ˆ
TI-89:
TI-92 Plus / Voyage 200 PLT:
and select 5:Equation & Coordinates
3. Select the circle whose equation you
want to find.
4. Select the center point of the circle to
find the coordinates of the point.
Equation &
tool displays the equation of a line,
Select an object.
Š
Coordinate
The result is displayed.
ˆ
.
tool displays the equation of a circle
Select an object.
Š
Coordinate
The result is displayed.
ˆ
.
Select a point to display its
coordinates.
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