Chapter 1
A-11
Copyright © Houghton Mifflin Company. All rights reserved.
Evaluate
Y
1
at
x
= 10 by recalling the previous entry with
2nd
ENTER
(
ENTRY
) , edit the 7 to 10 by pressing
and typing over the 7, and press
ENTER
.
&
1.2 Functions and Graphs
When you are asked to
estimate
or
approximate
an output or an input value, you can use your
calculator in the following ways:
¥
tracing a graph
(Sections 1.1.5, 1.1.6)
¥
close values obtained from a table of function values
(End of Section 1.2.2)
When you are asked to
find
or
determine
an output or an input value, you should use your
calculator in the following ways:
¥
evaluating an output on the home screen
(Section 1.1.7)
¥
find a value using the
AUTO
or
ASK
features of the table
(Section 1.2.1)
¥
determine an input using the solver
(Section 1.2.2)
1.2.1 DETERMINING OUTPUTS
Function outputs can be determined by evaluating on t h e
home screen, as discussed in 1.1.7. You can also evaluate functions using the calculatorÕs
TABLE
. When you use the table, you can ask for specific output values corresponding to t h e
inputs you enter or generate a list of input values that begin with
TblMin
and differ by
D
Tbl
and their corresponding outputs.
LetÕs use the
TABLE
to determine the output of the function
v(t)
= 3.622(1.093)
t
when
t
=85.
Even though you could use any of the function locations, we choose to use
Y
1
. Press
Y=
, clear
the function locations, and enter 3.622(1 .093)^
X
in location
Y
1
of the
Y=
list.
After entering the function
v(t)
in
Y
1,
choose the
TABLE
SETUP
menu.
Press
2nd
WINDOW
(
TblSet
) .
To generate a list of values beginning with an input of
80 with the table values differing by 1, enter 80 in the
TblMin
location, 1 in the
D
Tbl
location, and choose
AUTO
in the
Indpnt:
and
Depend:
locations.
Remember that you ÒchooseÓ a particular setting by
positioning the blinking cursor over that setting and
pressing
ENTER
.
Press
2nd
GRAPH
(
TABLE
) , and observe the list of
input and output values.
Notice that you can scroll through the table with
,
,
, and/or
.
The table values may be rounded in the table display.
You can see more of the output by moving to the value
and looking at the bottom of the screen.
