objectives construct a line graph from a set of data. analyze a line graph for trends or patterns,...
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![Page 1: Objectives Construct a line graph from a set of data. Analyze a line graph for trends or patterns, and make predictions about data](https://reader035.vdocuments.net/reader035/viewer/2022070409/56649e9d5503460f94b9eb9c/html5/thumbnails/1.jpg)
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ObjectivesConstruct a line graph from a set of data.Analyze a line graph for trends or patterns, and
make predictions about data.
![Page 3: Objectives Construct a line graph from a set of data. Analyze a line graph for trends or patterns, and make predictions about data](https://reader035.vdocuments.net/reader035/viewer/2022070409/56649e9d5503460f94b9eb9c/html5/thumbnails/3.jpg)
What is the difference between bar graphs and
line graphs?
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Bar GraphsBar graphs are used to show amounts of data.How much? How many?Example – the amount of each color of candy in a
bag.
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Line GraphsLine graphs connect
points to show change in data over time.
Months, hours, minutes, days, weeks, years, seconds, etc.
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Which graph would we use?
Bar Graph Line Graph
the height of a plant as it grows
how many people like each kind of ice
cream
how much money each store in a mall makestemperature over
the week
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Victoria’s HeightSuppose we want to make
a graph of Victoria’s height as she grew older.
What type of graph should we use? Why?
AgeHeight
(inches)
2 35
4 40
6 45
8 50
10 55
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Line GraphsA line graph would be a good way to show how
something has changed over time.
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Parts of a Line Graph
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Line Graphs The table below shows
daily temperatures for New York City, recorded for 6 days, in degrees Fahrenheit
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Line Graphs Sarah bought a new car in
2001 for $24,000. The dollar value of her car changed each year as shown in the table below.
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Line GraphsThe table below shows
Sam's weight in kilograms for 5 months.
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How can a line graph be used?View trends or patterns in data.
Does it seems to be increasing, decreasing, staying the same, or does it have no pattern at all?
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How can a line graph be used?Make predictions
about data.What do you predict
will happen to the temperature over the next few days?
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How can a line graph be used?Tracking
global warming
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How can a line graph be used?Carbon
Dioxide in the atmosphere
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How to Create a Line GraphStep 1: Gather Data
AgeHeight
(inches)
2 35
4 40
6 45
8 50
10 55
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How to Create a Line GraphStep 2: Label each axis.
AgeHeight
(inches)
2 35
4 40
6 45
8 50
10 55
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How to Create a Line GraphStep 3: Chart the data.
AgeHeight
(inches)
2 35
4 40
6 45
8 50
10 55
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How to Create a Line GraphStep 4:Connect the dots!
AgeHeight
(inches)
2 35
4 40
6 45
8 50
10 55
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How to Create a Line GraphStep 5: Add a title.
AgeHeight
(inches)
2 35
4 40
6 45
8 50
10 55
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Make a Line Graph!Movie ticket prices in the U.S.
Year Price
1956 $0.50
1966 $1.00
1976 $2.25
1986 $3.75
1996 $4.50
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Your turn! Here is the data for the height of a tree over several years.Step 1: Gather data.Step 2: Label each axis.Step 3: Chart the data.Step 4: Connect the dots.Step 5: Add a title.
What do you predict the tree’s height will be in 2010?
YearHeight (in
feet)
2002 2
2004 4
2006 8
2008 14
2010 22
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Your turn!Begin graphing the morning and afternoon
temperature for this past week.Step 1: Gather data.Step 2: Label each axis.Step 3: Chart the data.Step 4: Connect the dots.Step 5: Add a title.
What do you predict will happen to the temperature over the rest of the week?
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Can you…Construct a line graph from a set of data?Analyze a line graph for trends or patterns, and
make predictions about data?