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After setting the proper horizontal view, you can now
use ZFIT to draw a graph of the piecewise function.
You can find function values by evaluating outputs on
the home screen or using the table.
&
1.4 Linear Functions and Models
Actual real-world data is used throughout Calculus Concepts. It is necessary that you use
your calculator to find a curve that models the data. Be very careful when you enter t h e
data in your calculator because your model and all of your results depend on the values t h a t
you enter!
1.4.1 ENTERING DATA
these, entering data from the home screen and entering data using the list editor, are
discussed below. If you do not see the list names L
instructions at the beginning of this Guide.
We will explore data entry with the following data:
Y e a r
Tax
To enter data from the home screen,
Return to the home screen with
Press
(
2nd
–
type in each of the x-data values separated
by commas, and end the list with
Store this list to the name with L
1
ALPHA
ENTER
Copyright © Houghton Mifflin Company. All rights reserved.
There are several ways to input data in your calculator. Two of
1992
1993
2541
3081
2nd
EXIT
) , press
(
) to begin the list,
LIST
F1
{
(
F2
with
1
.
and L
return to the statistical setup
1
2
1994
1995
3615
4157
(
) .
QUIT
) .
}
‹
L
STO
Chapter 1
1996
1997
4703
5242
B-19
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