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**By Harleen Suri, Eliza Neights, Carina Tse**

Line Graph Project By Harleen Suri, Eliza Neights, Carina Tse

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What is a Line Graph? Graph used to represent data with an independent and dependent variable when showing changes over time Data is plotted on the graph and connected with lines

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When is it Used? When you are showing changes over time

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Real World Example The graph shows the temperature (°F) of New York City over 6 days Can easily see trend of data Could be used by meteorologists

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**What Type of Data Do You Need?**

Set of data- Can be a single or multiple or single set Need key if using multiple sets of data

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**Average Time Spent Watching TV**

Data Collected Average Time Spent Watching TV in Mrs. Ellwood's Class Time (minutes) Monday 37 Tuesday 40 Wednesday 39 Thursday 43 Friday 52 Saturday 83 Sunday 80

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**How We Made the Graph Draw and label a x- axis and y- axis**

Create a scale on each axis Plot your data points Connect each point with line segments Give your graph a title

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Quiz Question A TV company wants to schedule commercials during the day kids watch the most amount of TV. Mrs. Ellwood’s class was selected to complete a survey based on how much TV they watch. Find the largest increase in time TV was watched. Then, find the percent of increase of time TV was watched.

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**How to Solve Find the largest increase in the graph.**

From Friday to Saturday, the increase in time was greatest Then find percent of increase to the nearest tenth Difference Original = 83-52 52 ≈ 59.6%

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**Advantages of Line Graphs**

Can visually see the trend of the data Can see how data increases/decreases Can compare two sets of data Use a line graph with multiple sets of data

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**Disadvantages of Line Graphs**

Hard to see the specific data points when the scale is large Sometimes the scale can change the appearance of the data

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Works Cited Evernote. Evernote, n.d. Web. 12 Feb <https://www.evernote.com/shard/s134/sh/f11fa37a a722-49ed3115b924/21ea4dd75a2f06164cb a617a>. Graphing Tutorial. Graphing Tutorial, n.d. Web. 14 Feb <http://nces.ed.gov/nceskids/help/user_guide/graph/line.asp>. Line Graph. New York State Intermediate Test Prep Center, Web. 17 Feb <http://www.studyzone.org/mtestprep/math8/f/linegraphles.cfm>. Line Graphs. N.p., n.d. Web. 17 Feb <http://mste.illinois.edu/courses/ci330ms/youtsey/lineinfo.html>. OnlineMathLearning.com. OnlineMathLearning.com, Web. 15 Feb <http://www.onlinemathlearning.com/line-graphs.html>. Teacher Vision. Daily Teach, Web. 14 Feb <http://www.teachervision.fen.com/tv/printables/SISA00181_3.pdf>.

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