Sharp EL-9900 EL9900 Operation Manual - Page 24

Charateristics Of The Y-intercept

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CHARATERISTICS OF THE y-INTERCEPT 1. Graph the equation y = x by pressing Y= CL to remove an old Y1 expression, and press x to enter the equation. 2. Press ENTER CL to clear Y2 or additional prompts. 3. Use the default viewing range, and press ZOOM A (ZOOM) 5 (Default) to view the graph. 4. Adding 2 will result in the equation y = x + 2. Enter this equation for Y2 by pressing Y= ▼ x + 2 . 5. To view both the graphs on the same coordinate axes, press GRAPH . The graph y = x + 2 has shifted up from the graph of y = x . The y intercept is now y = 2. 6. Subtracting 2 will result in the equation y = x - 2. Enter this equation for Y2 by pressing Y= ▼ CL x - 2 . 7. To view both the graphs on the same coordinate axes, press GRAPH . The graph y = x - 2 has shifted down from the graph of y = x . The y intercept is now y = -2. 3 Basic Keyboard/ALGEBRA USING THE SHARP EL-9900 Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.

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3
Basic Keyboard/ALGEBRA USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation.
Permission is granted to photocopy for educational use only.
1.
Graph the equation
y
=
x
by pressing
Y=
CL
to remove an old Y1
expression, and press
x
to enter the equation.
2.
Press
ENTER
CL
to clear Y2 or additional prompts.
3.
Use the default viewing range, and press
ZOOM
A
(ZOOM)
5
(Default)
to view the graph.
4.
Adding 2 will result in the equation
y
=
x
+ 2.
Enter this equation for Y2 by
pressing
Y=
▼
x
+
2
.
5.
To view both the graphs on the same coordinate axes, press
GRAPH
.
The graph
y
=
x
+ 2 has shifted up from the graph of
y
=
x
.
The
y
-
intercept is now
y
=
2.
6.
Subtracting 2 will result in the equation
y
=
x
– 2.
Enter this equation for Y2
by pressing
Y=
▼
CL
x
–
2
.
7.
To view both the graphs on the same coordinate axes, press
GRAPH
.
The graph
y
=
x
– 2 has shifted down from the graph of
y
=
x
.
The
y
-
intercept is now
y
=
-
2.
CHARATERISTICS OF THE y-INTERCEPT