[ ] represents yellow command or green letter behind a key
<> represents items on the screen
To adjust the contrast
Press
, then hold
to increase the contrast or
to decrease the contrast.
To capitalize letters and words
Press
to get one capital letter, or press
, then
to set all button presses to capital letters.
You can return to the top-level button values by pressing
again.
To correct a mistake
If you hit a wrong button, just hit
and start again.
To write in scientific notation
Numbers in scientific notation are expressed on the TI-83, 83+, 84, and 84+ using E notation, such that...
4.321 E 4 =
4.321 E –4 =
To transfer programs or equations from one calculator to another:
Both calculators: Insert your respective end of the link cable cable
and press
, then
[LINK] .
Calculator receiving information:
Use the arrows to navigate to and select
<RECEIVE>
Press
.
Calculator sending information:
Press appropriate number or letter.
Use up and down arrows to access the appropriate item.
Press
to select item to transfer.
Press right arrow to navigate to and select
<TRANSMIT> .
Press
.
Note
ERROR 35 LINK generally means that the cables have not been inserted far enough.
Both calculators: Insert your respective end of the link cable cable
Both calculators: press
, then
[QUIT] to exit when done.
Manipulating one-variable statistics
Note
These directions are for entering data with the built-in statistical program.
Sample data
Data
Frequency
–2
10
–1
3
0
4
1
5
3
8
We are manipulating one-variable statistics.
To begin:
Turn on the calculator.
Access statistics mode.
Select
<4:ClrList> to clear data from lists, if desired.
,
Enter list
[L1] to be cleared.
,
[L1] ,
Display last instruction.
,
[ENTRY]
Continue clearing remaining lists in the same fashion, if desired.
,
,
[L2] ,
Access statistics mode.
Select
<1:Edit . . .>
Enter data. Data values go into
[L1] . (You may need to arrow over to
[L1] ).
Type in a data value and enter it. (For negative numbers, use the negate (-) key at the bottom of the keypad).
,
,
Continue in the same manner until all data values are entered.
In
[L2] , enter the frequencies for each data value in
[L1] .
Type in a frequency and enter it. (If a data value appears only once, the frequency is "1").
,
Continue in the same manner until all data values are entered.
Access statistics mode.
Navigate to
<CALC> .
Access
<1:1-var Stats> .
Indicate that the data is in
[L1] ...
,
[L1] ,
...and indicate that the frequencies are in
[L2] .
,
[L2] ,
The statistics should be displayed. You may arrow down to get remaining statistics. Repeat as necessary.
Drawing histograms
Note
We will assume that the data is already entered.
We will construct two histograms with the built-in STATPLOT application. The first way will use the default ZOOM. The second way will involve customizing a new graph.
Access graphing mode.
,
[STAT PLOT]
Select
<1:plot 1> to access plotting - first graph.
Use the arrows navigate go to
<ON> to turn on Plot 1.
<ON> ,
Use the arrows to go to the histogram picture and select the histogram.
Use the arrows to navigate to
<Xlist> .
If "L1" is not selected, select it.
,
[L1] ,
Use the arrows to navigate to
<Freq> .
Assign the frequencies to
[L2] .
,
[L2] ,
Go back to access other graphs.
,
[STAT PLOT]
Use the arrows to turn off the remaining plots.
Be sure to deselect or clear all equations before graphing.
Wayne and Dennis like to ride the bike path from Riverside Park to the beach. Dennis’s speed is seven miles per hour faster than Wayne’s speed, so it takes Wayne 2 hours to ride to the beach while it takes Dennis 1.5 hours for the ride. Find the speed of both bikers.
from theory: distance [miles] = speed [mph] × time [hours]
info #1
speed_Dennis × 1.5 = speed_Wayne × 2
=> speed_Wayne = 0.75 × speed_Dennis (i)
info #2
speed_Dennis = speed_Wayne + 7 [mph] (ii)
use (i) in (ii) => [...]
speed_Dennis = 28 mph
speed_Wayne = 21 mph
George
Let W be Wayne's speed in miles per hour and D be Dennis's speed in miles per hour. We know that W + 7 = D and W * 2 = D * 1.5.
Substituting the first equation into the second:
W * 2 = (W + 7) * 1.5
W * 2 = W * 1.5 + 7 * 1.5
0.5 * W = 7 * 1.5
W = 7 * 3 or 21
W is 21
D = W + 7
D = 21 + 7
D = 28
Salma
Devon is 32 32 years older than his son, Milan. The sum of both their ages is 54 54. Using the variables d d and m m to represent the ages of Devon and Milan, respectively, write a system of equations to describe this situation. Enter the equations below, separated by a comma.
please why is it that the 0is in the place of ten thousand
Grace
Send the example to me here and let me see
Stephen
A meditation garden is in the shape of a right triangle, with one leg 7 feet. The length of the hypotenuse is one more than the length of one of the other legs. Find the lengths of the hypotenuse and the other leg
however, may I ask you some questions about Algarba?
Amoon
hi
Enock
what the last part of the problem mean?
Roger
The Jones family took a 15 mile canoe ride down the Indian River in three hours. After lunch, the return trip back up the river took five hours. Find the rate, in mph, of the canoe in still water and the rate of the current.
Shakir works at a computer store. His weekly pay will be either a fixed amount, $925, or $500 plus 12% of his total sales. How much should his total sales be for his variable pay option to exceed the fixed amount of $925.
I'm guessing, but it's somewhere around $4335.00 I think
Lewis
12% of sales will need to exceed 925 - 500, or 425 to exceed fixed amount option. What amount of sales does that equal? 425 ÷ (12÷100) = 3541.67. So the answer is sales greater than 3541.67.
Check:
Sales = 3542
Commission 12%=425.04
Pay = 500 + 425.04 = 925.04.
925.04 > 925.00
Munster
difference between rational and irrational numbers
Jazmine trained for 3 hours on Saturday. She ran 8 miles and then biked 24 miles. Her biking speed is 4 mph faster than her running speed. What is her running speed?
represents a button press
, then hold
to increase the contrast or
to decrease the contrast.
to get one capital letter, or press
and start again.
.
,
,
,
,
