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Data Tables
A data table has three titles.
Independent variable (IV) is on the left side of the data table.
Dependent variable (DV) is on the right side of the data table.
Data arranged in rows and columns.
Average Daily Temperature for January 1-5 in Degrees Fahrenheit
Date Temperature (°F)
1
2
3
4
5
10
25
30
42
23
Graphing
OverviewOverview
G rap h in g
B A R L IN E
D ec id e
W rite th e m ain title u sedin th e d a ta tab le .
W rite th e IV and DV titlesfrom th e d a ta tab le .
D raw an d lab e l x & y axes(D on 't fo rg e t ze ro .)
All graphs start here!
Draw and label both axes.
x
y
0
Variables
x- axis : Independent variable
y- axis : Dependent variable
DVDV
TitleTitle
IV TitleIV Title x
y
0
All graphs have
THREE TITLES!
Titles
3 labels per graph: - Main title that describes the graph - x-axis - y-axis
The titles come from the data table.
Investigation 5
Make a title for your graph.Number Number
of Eachof Each
Type of CarType of Car x
y
0
Cars in the Teachers’ Parking Lot
Bar or Line?????
Bar Graphsused for descriptive
or grouping information (compares data)
Examples:Type of ---, color, weight, height, shape, amount, etc.
Bar or Line?????
Line Graphs
Used when you collect information over time
Examples: hours, days, months, years, decades, seconds, centuries, minutes, weeks, temperature, etc.
Quick ReviewQuick Review
G rap h in g
B A R L IN E
D ec id e
W rite th e m ain title u sedin th e d a ta tab le .
W rite th e IV and DV titlesfrom th e d a ta tab le .
D raw an d lab e l x & y axes(D on 't fo rg e t ze ro .)
Range
From lowest to highest.
Bar - y axis
Number the y-axis only!
Use an increment small enough to cover entire graphing space but large enough to include highest number. 0
2
4
6
8
10
12
14
16Cars in the Teachers’ Parking
Lot
Bar - x axis
Write the groups (words) from the left side of the data table
0
2
4
6
8
10
12
14
16Cars in the Teachers’ Parking
Lot
Chevy Dodge Ford Honda Mazda Toyota Volvo
Bar Graph
Draw the bars.
0
2
4
6
8
10
12
14
16Cars in the Teachers’ Parking
Lot
Chevy Dodge Ford Honda Mazda Toyota Volvo
Quick ReviewQuick Review
D raw th e b ars .
W rite th e groups on th eX axis .
Num ber th e Y axis on ly!
B A R L IN E
D ec id e
W rite th e m ain title u sedin th e d a ta tab le .
W rite th e IV and DV titlesfrom th e d a ta tab le .
D raw an d lab e l x & y axes(D on 't fo rg e t ze ro .)
Increments
The numbers on the axis.- Line graph: x and y axis=range
Equal to multiples large enough to include highest number. (ex: 5, 10, 15, 20 or 100, 200, 300, 400 or 1, 2, 3, 4……)
0
20
40
60
80
100
Line - y axis
Number the y-axis!Use an increment
small enough to cover entire graphing space but large enough to include highest number.
Scores on a Science Test
Line- x axis
Number the x-axis!Use an increment
small enough to cover entire graphing space but large enough to include highest number. 0
20
40
60
80
100Scores on a Science Test
0 1 2 3 4 5 6
Ordered Pairs
Two numbers that join together to make a point on a graph.
( x, y) (2, 3)
Plot your ordered pairs.
0
20
40
60
80
100Scores on a Science Test
0 1 2 3 4 5 6
Connect the dots in order!
0
20
40
60
80
100Scores on a Science Test
0 1 2 3 4 5 6
SummarySummary
D raw th e b ars .
W rite th e groups on th eX axis .
Num ber th e Y axis on ly!
BAR
Connect the dots in th eord er you d rew th em .
Plot th e o rd ered p a irs .
Num ber th e x & y axes .
L INE
D ec id e
W rite th e m ain title u sedin th e d a ta tab le .
W rite th e IV and DV titlesfrom th e d a ta tab le .
D raw an d lab e l x & y axes(D on 't fo rg e t ze ro .)
