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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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CMETS Instruction Sheets - Welcome to oak.ucc.nau.edu

Feb 04, 2022

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Page 1: CMETS Instruction Sheets - Welcome to oak.ucc.nau.edu

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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

of L1 changed.