1 Graphing Calculator Instruction Sheets HOW TO ENTER DATA INTO LISTS Directions Screen Shot You can enter data for up to 6 lists, labeled L1 through L6 in the calculator. How to clear all list data: Press: 2 nd MEM (+) 4:ClrAllLists Enter How to enter data into the lists: Press: STAT 1:Edit You should see the columns appear for L1 through L3 If you scroll over with the right arrow button, you will see the other columns for L4 through L6 The highlighted space is where you may enter data. Enter the data by using the number keys and hitting ENTER. You can also use the right and left arrow buttons to move from list to list
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Graphing Calculator Instruction Sheets
HOW TO ENTER DATA INTO LISTS
Directions Screen Shot
You can enter data for up to 6 lists, labeled L1 through L6 in the
calculator.
How to clear all list data:
Press: 2nd MEM (+) 4:ClrAllLists Enter
How to enter data into the lists:
Press: STAT 1:Edit
You should see the columns appear for L1 through L3
If you scroll over with the right arrow button, you will see the
other columns for L4 through L6
The highlighted space is where you may enter data. Enter the
data by using the number keys and hitting ENTER. You can also
use the right and left arrow buttons to move from list to list
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HOW TO GRAPH DATA ENTERED INTO LISTS
Directions Screen Shot
You may graph data in several different ways. Use the
STATPLOT function. Press 2nd, STAT PLOT. You may graph up to
three plots at a time. 4:PlotsOff will turn all the data graphs off.
You probably only want to see your data graphed. If this is the
case, make sure that the Y= screen doesn’t have any equations in
it. If so, clear them out by scrolling down to each equation and
pressing CLEAR. In this screen, all the Plots are turned off (they
aren’t highlighted).
To setup the plot as a scatter plot graph:
Press: 2nd STATPLOT (Y=) 1: Plot 1
You have several options now. Scroll down/over to each choice
and adjust as needed (press ENTER to select a certain choice):
Turn ON
Select the first type of graph (scatter plot)
Xlist: L1 (or whatever list you want to use)
Ylist: L2 (or whatever list you want to use)
Mark: choose which one you want
To setup the plot as a connected scatter plot graph:
Press: 2nd STATPLOT (Y=) 1: Plot 1
You have several options now. Scroll down/over to each choice
and adjust as needed (press ENTER to select a certain choice):
Turn ON
Select the second type of graph (connected scatter plot)
Xlist: L1 (or whatever list you want to use)
Ylist: L2 (or whatever list you want to use)
Mark: choose which one you want
To setup the plot as a box-and-whisker plot:
Press: 2nd STATPLOT (Y=) 1: Plot 1
You have several options now. Scroll down/over to each choice
and adjust as needed (press ENTER to select a certain choice):
Turn ON
Select the fifth type of graph (box-and-whisker)
Xlist: L1 (or whatever list you want to use)
Freq:1
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To view the graph
Press: GRAPH
(You may not see anything. You may need to adjust the window
manually or press ZOOM 9:ZoomStat (to set the window
automatically to the data).
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HOW TO ADJUST THE WINDOW
Directions Screen Shot
To manually adjust the viewable area of the window:
Press: WINDOW
Scroll down to the choices and enter in the numbers that would
be best for your graph. The screen given shows the standard
settings.
Xmin: minimum value on the x-axis
Xmax: maximum value on the x-axis
Xscl: this is the scale you want on your x-axis
Ymin: minimum value on the y-axis
Ymax: maximum value on the y-axis
Yscl: This is the scale you want on your y-axis
Press GRAPH to see your screen.
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TRACING A GRAPH
Directions Screen Shot
You can trace any graph using the TRACE key.
Press: TRACE
You should see a blinking point, with the coordinates at the
bottom of the screen for that point. The screen displayed shows
an equation (Y1=2x+3) graphed and the cursor at (0,3).
Scroll to the next points for that plot using the right and left
arrow keys. The screen displayed has the cursor moved to the
right and at (1.9…,6.8…).
You may also TRACE on a STAT PLOT. The screen displayed
shows a scatter plot of L1 and L2 where the cursor is on data
point (1150,33).
Use the right and left arrow keys to jump to each ordered pair.
The cursor is now on data point (490,33).
If you have more than one graph displayed, you can jump to other
graphs by pressing the up or down arrow key. In the first screen,
the STAT PLOT is being traced (see the upper left corner of the
screen P1:L1,L2). In the second screen, the equation Y1=.05x is
being traced (see the upper left corner of the screen Y1=.05x)
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HOW TO CALCULATE THE LINEAR REGRESSION (Line of Best Fit) FOR DATA
Directions Screen Shot
To compute the equation for the linear regression line:
Press: STAT Calc 4:LinReg(ax+b) 2nd L1 ,
2nd L2 Enter
The calculator will give you with general linear equation and
values for slope and y-intercept.
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To graph, you need to enter the equation into the Y= screen. To
automatically paste the regression equation in to the Y= screen,
Press: Y= VARS 5:Statistics
Scroll over to EQ 1:RegEQ Enter.
To view the graph:
Press: GRAPH
You should see your scatter plot and the linear regression line
also
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HOW TO FIND THE INTERSECTION OF TWO EQUATIONS
Directions Screen Shot
Input the equations under Y=.
Press: GRAPH (you may need to adjust the window to see your
graphs).
You can estimate the point of intersection by tracing to where
they cross:
Press: TRACE Use the right and left arrow keys to move the
tracing point. Notice the x and y coordinates at the bottom of the
screen
You can estimate the point of intersection by zooming in using
ZOOM 1:ZBox, and then TRACE to find where they cross.
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You can find the actual point of intersection:
Press: 2nd CALC 5:intersect
The calculator will prompt you for which curves you want find the
intersection for. If you only have two equations, just press
ENTER until it gives you the intersection x and y coordinates. The
calculator also asks for a guess. You may TRACE to a good
estimate of the intersection and then Press: ENTER. You may also
just press ENTER.
If you have more than two curves, use the up and down arrows to
select which two curves you want for the intersection.
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HOW TO LINK TWO GRAPHING CALCULATORS (TI-83/84)
Directions Screen Shot
Connect the two calculators with the link cable. Make sure the
link cables are pressed in all the way.
On the RECEIVING calculator,
Press: 2nd Link Scroll over to : Receive
The message “Waiting…” should appear on the screen
On the SENDING calculator,
Press: 2nd Link
Press the number in front of the type of object you want to
send. (e.g. 4:Lists)
All objects within the calculator of the type of item you are
sending will appear in a list. Scroll down and press ENTER when
you are in front of each item you want to send. Selected items
will have a shaded box in front of them. In the screen shown, L1,
L3 and L4 arre selected to be sent.
When all items chosen for sending have been marked, toggle to
the right so that TRANSMIT is highlighted.
Press: ENTER
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Watch the screen of the receiving calculator. If a duplicate
object is being transmitted, you will get a message saying you are
trying to link a “Duplicate Name.”
Press: 2 to overwrite (e.g. replace) the object and thus get the
new one.
If you need to keep the old object Press: 4, then rename old
object and start process again.
When data is transferred, you will get a done message
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CALCULATING ONE-VARIABLE STATISTICS
Directions Screen Shot
To find the minimum, maximum, mean or median of a data set
that has been entered in a list,
Press 2nd LIST scroll over to MATH
Scroll down to the function you want to perform and press
ENTER. In the screen shown, the mean is being selected.
After you press ENTER, the calculator will return to the home
screen. You now to need to input which list you want to take the
mean of. Type L1 (or whatever list you want) and press ENTER.
You do not have to type in the end parentheses.
The calculator will also perform a lot of one-variable statistics at
once. Press STAT, scroll over to CALC and select 1:1-Var Stats.
Press ENTER.
After you press ENTER, the calculator will return to the home
screen. You now to need to input which list you want to take the
statistics of. Type L1 (or whatever list you want) and press
ENTER. You do not have to type in the end parentheses.
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The calculator will list several statistics. Use the up and down
arrow to scroll up and down for all the statistics.
X bar is the mean
Σx is the sum of the data points
Σ x-squared is the sum of the squared data
Sx is sample standard deviation
δx is population standard deviation
n is the number of data points
minx is the minimum of the data
Q1 is the lower (first) quartile of the data
Med is the median (second quartile) of the data
Q3 is the upper (third) quartile of the data
maxX is the maximum of the data
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Grouping and Ungrouping Data, Programs, Etc.
Directions Screen Shot
You may save lists, programs (and anything else you want) into a
GROUP to save for later. This is particularly useful when you have
data you want to save in the lists but have to do something else
with the lists and don’t to lose the data you already have.
Press 2nd MEM, scroll down to 8:Group, press ENTER.
Press ENTER to create a new Group. To create a new Group, you
need to give it a name. The screen shown is naming a group “BOB.”
Press ENTER.
Now you need to select the things that you want to group. For
example, if you want to group Lists, scroll down to 4:List, press
ENTER.
Scroll and press ENTER for each list you want to include in the
group. In this example, we are grouping L2, L3 and L6.
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Scroll over to DONE and Press ENTER. The calculator will save
your group.
To UNGROUP the data (put it back into the original lists), Press
2nd MEM 8:Group. Scroll over to UNGROUP
Press ENTER on the group you want to UNGROUP. The calculator
will prompt you to either rename, overwrite, omit or quit. If a
duplicate object is being transmitted, you will get a message
saying you are trying to link a “Duplicate Name.”
Press: 2 to overwrite (e.g. replace) the object and thus get the
new one.
If you need to keep the old object Press: 4, then rename old
object and start process again.
When data is ungrouped, you will get a done message.
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Common ZOOM Settings
Directions Screen Shot
Press ZOOM. You have several options. These are instructions for
the most used Zoom Features.
1:ZBox is used to narrow in a certain area of the graph. Press
ENTER. You will see a + sign on the screen. Use the arrow keys to
place the + in the upper left corner of what you want to zoom in
on.
Press ENTER. The + becomes a little box.
Scroll right to place the upper right hand corner of the box. Press
ENTER.
Scroll down to draw the zoom box.
Press ENTER and the screen then zooms to the section you
wanted.
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To go back to the previous zoom screen, press ZOOM, scroll right
to MEMORY, Press ENTER on 1:ZPrevious.
4:ZDecimal adjusts the viewing window so that the x and y
changes by 0.1 On the screen shown, the points being traces are in
tenths.
5:ZSquare adjusts the viewing window makes the x and y axis the
same scale. You can see in the screen shown that this is true.
6:ZStandard sets the x-axis from -10 to 10 and the y-axis from10
to 10. The scales are not the same.
9:ZoomStat adjusts the viewing window so that all data from a
STAT PLOT are shown.
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Split Screen Options
Directions Screen Shot
Press MODE. The calculator has three modes for the screen: Full,
Horiz and G-T
“Full” shows the enter graph in the screen
“Horiz” shows top half of the screen as the graph and the bottom
half of the screen in the home screen. Or Y=
“G-T” shows both the graph of an equation and the table values
associated with it.
One of the nice features of “G-T” is that the calculator will
TRACE on the graph and highlight the same point in the table at
the same time.
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TABLE and TBL SET
Directions Screen Shot
The TABLES are the values associated with equations that are
entered in the Y= screen. This screen shows equations in Y1 and
Y2
Press 2nd TABLE to see the values for X, Y1 and Y2. This screen
shows X values that start at 0 and are integers. You may scroll up
and down using the arrow keys to see more values.
Scroll over and up to see the equations for each Y column
To change how the X-values change, Press 2nd TBLSET
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TblStart= adjusts where the X-values will start on the screen. If
you want to start at another point, type where you want the table
to start. In this screen we have changed it the table to start at -
10.5
∆Tbl= is by how much the X-values change in each row. In this
screen, we have changed it to go by tenths.
Press 2nd TABLE. You can see in the Table that the X-values
start at -10.5 and change by tenths.
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Running a Program/Application
Directions Screen Shot
To run a program, Press PRGM. You will see a list of programs to
run.
Scroll down to the program you want using the arrow keys and
press ENTER. You will need to press ENTER again to run the
program.
To run an application, press APPS. You will see al ist of application
to run.
Scroll down to the application you want to run using the arrow
keys and press ENTER. The application should run and you follow
the directions on the screen.
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Setting Up and Running Transformation Graphing
Directions Screen Shot
The regular Y= screen looks like this:
Run Transformation Graphing by pressing APPS and finding
Transfrm (scroll up to it or press ALPHA T). Press ENTER and
follow the directions on the screen.
Press Y=. Transformation Graphing changes the Y=screen. It
changes the left hand symbols.
Transformation Graphing requires a general equation using alpha
letters and the X variable. The screen shown displays a general
equation for a linear equation.
Press GRAPH to see the graph and to change the values of A and
B using the arrow keys or entering values with the number keys.
The highlighted equal sign is the value that is available for
changing. This allows you to change the equation on the graph
screen without having to toggle back to the Y= screen each time.
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To change the set up for Transformation Graphing, press
WINDOW and scroll over to SETTINGS.
The >ll has the line changing manually. The > has the line changing
automatically at a slow pace. The >> has the line changing
automatically at a fast pace. >ll is the usual setting unless you are
doing a demonstration in front of the class when you want the
line to change automatically.
You can set A and B to start where you would like. This screen
starts with A=2 and B=2 (see screen shot above) and has
changing increments of 1.
This screen shows the settings changed so that the value of A=1,
B=.5 and the increments change by tenths. Press GRAPH to see
the changes take effect.
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Entering Formulas into Lists
Directions Screen Shot
You may enter a formula into a list to calculate from another list.
Make sure you have data in one list before you reference it in
another list. Press STAT 1:Edit to access your lists.
In this example, the calculator has data in L1
Suppose we want L2 to be double the value of L1. Scroll over and
up so that L2 is highlighted. Press ENTER so the cursor appears
at the bottom of the screen.
Press ALPHA “L1*2”
.
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Press ENTER and you will see the values filled in for L2 (notice
the mark by L2 at the top of the screen; that indicates that L2
was generated by a formula). The formula will hold true for any
values of L1. The second screen shows the first value of L1
changed and L2 changed automatically.
Quotes (“”) are used to keep the formula working as the data in
L1 changes. If you don’t use the quotes, the L2 would be
generated but won’t change as L1 values are changed. Notice that
the L2 value didn’t change in the second screen as the first value