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Applications 11-13
4. Add the third piece of the function to
Y1
. This piece is
f(x)=6
ì
x for x≥5. It is entered as
(6
ì
x) (x
≥
5)
. When x is
greater than or equal to 5, the test (x≥5) returns 1. The
third piece of the function is then equivalent to (6
ì
x)×1.
When X is less than 5, the test (x≥5) returns 0. The third
piece of the function is then equivalent to (6
ì
x)×0.
5. Enter these Window variable values.
Xmin=
ë
2 Ymin=
ë
2
Xmax=8 Ymax=10
Xscl=2 Yscl=1
6. Graph the piecewise function first in
CONNECTED
and
then
DOT
mode. Select
CONNECTED
on the
MODE
screen,
and then press
,
. Then select
DOT
on the
MODE
screen, and press
,
.
CONNECTED DOT