15
Advanced Keyboard/ALGEBRA USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
1. Evaluate |
-
2(5 – 1)| by pressing to access the home or computation
screen. Enter the absolute value symbol by pressing MATH B (NUM)
1 (abs). You should see | | on the screen. Enter -2(5-1) inside the
absolute value symbols and evaluate by pressing
(–)
2
(
5 – 1
)
ENTER .
2. Graph y = |x| by pressing Y= CL to clear the Y1 prompt. Press ENTER
CL to clear the remaining prompts if necessary. Enter |x| in Y1 by pressing
MATH B (NUM) 1 (abs) and pressing X/θ/T/n . Press ZOOM A
(ZOOM) 5 (Default) to draw the graph.
ABSOLUTE VALUE
×
+
–
÷
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