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Step & Key Operation
(When using EL-9650/9600c)
*Use either pen touch or cursor to operate.
Display
(When using EL-9650/9600c)
EL-9650/9600c/9450/9400 Graphing Calculator
Notes
1-2
View the graphs.
These lines have slopes that
are negative reciprocals of
each other (m = - ). They are
called perpendicular. Note that
these intersecting lines form
four equal angles.
2-2
The Graphing Calculators can be used to draw parallel or perpendicular
lines while learning the slope or y-intercept of linear equations.
1
m
GRAPH