103
Chapter 4: Graphing Features
09 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 equation from Y0 to Y9 if stored.
10 Circle(
Draw a circle on the graph screen.
From the Calculation
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.
Example
• Shade the area enclosed by
y =
1
4
x
2
– 8
and
y = x
within the range of
–2
≤
x
≤
3
.
Before starting operation, Select
ClrDraw to clear the
graphs previously drawn.
1. Select
Shade(.
2. Enter “
1
4
x
2
–
8, x,
-
2, 3)” on the line.
3. Press
E
.
Note: It is also possible to
specify a function equation from Y0 to Y9 if stored.
