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NotesStep & Key Operation Display
EL-9900 Graphing Calculator
2-3
View the graph.
2-5
Change the coefficients to graph
y =|x|-1.
2-4
View the graph.
The EL-9900 shows absolute values with | |, just as written on paper, by using the
Equation editor. Use of the calculator allows various absolute value functions to be
graphed quickly and shows their characteristics in an easy-to-understand manner.
Notice that placing an h (>0)
within the standard form
y = a|x - h|+ k will move the
graph right h units on the x-
axis.
Notice that adding a k(>0)
within the standard form
y=a|x-h|+k will move the
graph up k units on the y-axis.
10-1
Y=
2nd F SUB ENTER
ENTER ENTER
1
1
(
-
)
GRAPH
GRAPH
ENTER
0