Friday, March 21 Chapter 12.5 Interpret Line Graphs.

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Presentation transcript:

Friday, March 21 Chapter 12.5 Interpret Line Graphs

Objective: To draw and interpret line graphs.

Interpret Line Graphs At the end of this lesson you should be able to answer the following question. How can you use lines graphs to predict data?

Interpret Line Graphs A line graph is used to show how a set of data changes over a period of time.

Interpret Line Graphs What does the graph tell you about the popularity of skateboarding? Hint – is it decreasing, increasing or staying the same?

Interpret Line Graphs What does the graph tell you about the popularity of skateboarding? Sometimes we can predict trends by looking at a graph.

Interpret Line Graphs What does the graph tell you about the popularity of skateboarding? Can you predict how many skateboards will be sold in ‘15?

Interpret Line Graphs What does the graph tell you about the popularity of skateboarding? Can you predict how many skateboards will be sold in ‘15?

Interpret Line Graphs What does the graph tell you about the popularity of skateboarding? Can you predict how many skateboards will be sold in ‘15?

Interpret Line Graphs The line graph shows the weight of a kitten over several weeks. Describe the trend.

Interpret Line Graphs The line graph shows the growth of a plant over several weeks. Describe the trend.

Interpret Line Graphs The line graph shows the growth of a plant over several weeks. Can you predict how tall the plant will be after 7 weeks?

Interpret Line Graphs The line graph shows the growth of a plant over several weeks. Can you predict how tall the plant will be after 7 weeks? About 11 inches

Interpret Line Graphs The line graph shows the area of the Earth’s rainforests. Describe the trend.

Interpret Line Graphs The line graph shows the area of the Earth’s rainforests. Can you predict how many acres of rainforest there will be in 2020?

Interpret Line Graphs The line graph shows the area of the Earth’s rainforests. Can you predict how many acres of rainforest there will be in 2020? About 250 million acres.

Interpret Line Graphs Describe the depth change from 10 minutes to 35 minutes.

Interpret Line Graphs Describe the depth change from 10 minutes to 35 minutes. 10 minutes the depth was -22ft. 35 minutes the depth was -42 ft The diver went 20 ft lower

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 1 – Draw a large “L” to represent the “x” and “y” axis of the graph.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 1 – Draw a large “L” to represent the “x” and “y” axis of the graph.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 2 – Label and list the time data on the “x” axis.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 2 – Label and list the time data on the “x” axis.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 3 – The other data set will be labeled and listed along the “y” axis. Decide upon an interval.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 3 – The other data set will be labeled and listed along the “y” axis. Decide upon an interval.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 4 – Plot and connect the data points.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 4 – Plot and connect the data points.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 5 – Title the graph.

Interpret Line Graphs Make a line graph of the Earth’s population. Describe the change in Earth’s population from 1750 to How to Construct a Line Graph. Step 5 – Title the graph.

Interpret Line Graphs How can you use lines graphs to predict data?

Interpret Line Graphs Agenda Notes Homework– No Homework Chapter 11/12 Test – Tuesday, March 25