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Chapter 4: Graphing Features
8 DrawInv
DrawInv
equation
Draws an inverse of a given graph expression.
Example
• Draw the inverse graph of
y =
1
4
x
2
– 8
.
1. Select
DrawInv
.
2. Enter “
1
4
x
2
–
8” on the
line.
3. Press
E
.
Note:
It is also possible to specify
a function if stored in Y0 to Y9.
9 Circle(
Draw a circle on the graph screen.
Circle(
x-coordinate of center, y-coordinate of
center, radius)
Example
• Draw a circle with center at (2,3) and of radius 7.
1. Select
Circle(
.
2. Enter “2,3,7)” on the line.
3. Press
E
.
Note:
Before drawing a circle,
press
Z
A
6
to
set the X-Y coordinates to square.
Circle(
Example
• Draw a circle manually.
1. Select
Circle(
.
2. Move the cursor to set the center point of the circle.
Press
E
to set the anchor.
3. Move the cursor to determine the radius length of
the circle.
4. When done, press
E
.
The circle is drawn at the
location.
From the Calculation
screen
From the GRAPH
window
