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===About Line Graphs===
: '''Line graphs ''' are used to show changes over time.: '''Line graphs''' use x's to plot points on the graph.: Time is always plotted on the [[x-axis]].: The [[variable]] that is being counted or measured goes on the [[y-axis]].
===Drawing Plotting a Line Graph===
{| class="wikitable"
|-
|[[File:LineGraphTable.png|center|200px300px]]|[[File:LineGraphPt1.png|center|200px400px]]
|-
| style="height:20px; width:200px400px; text-align:center;" |TextUse the results table to find the highest number. (On this table it's 8).| style="height:20px; width:200px400px; text-align:center;" |TextDays of the week is on the x-axis and number of vegetables on the y-axis. Add the numbers to the axes up to the highest number.
|-
|[[File:LineGraphPt2.png|center|200px400px]]|[[File:LineGraphPt3.png|center|200px400px]]
|-
| style="height:20px; width:200px400px; text-align:center;" |TextPlot the points on the graph using an X at each point.| style="height:20px; width:200px400px; text-align:center;" |TextJoin the X's with a line going from left to right.
|}
===Examples===
{| class="wikitable"
|-
|[[File:LineGraph2.png|center|400px]]
|[[File:LineGraph1.png|center|400px]]
|-
| style="height:20px; width:400px; text-align:center;" |The day of the week is plotted on the X-axis, the number of minutes spent watching TV each day is plotted on the y-axis.
| style="height:20px; width:400px; text-align:center;" |The Time of Day is plotted on the x-axis and the temperature is plotted on the y-axis.
|}
===Note to Teachers===
Students enter KS3 generally very good at plotting '''line graphs'''. However, these graphs of rarely used in science and are frequently confused with [[Scatter Graph|scatter graphs]] which are far more widely used and useful in KS3, KS4 and KS5.
==Key Stage 3==
===Meaning===
A '''line graph''' is a [[graph]] in which the points are joined with straight lines.
===About Line Graphs===
: '''Line graphs''' are used to show changes over time.
: '''Line graphs''' use x's to plot points on the [[graph]].
: Time is always plotted on the [[x-axis]].
: The [[variable]] that is being counted or [[measure]]d goes on the [[y-axis]].
===Examples===
{| class="wikitable"
|-
|[[File:LineGraph2.png|center|400px]]
|[[File:LineGraph1.png|center|400px]]
|-
| style="height:20px; width:400px; text-align:center;" |The day of the week is plotted on the X-axis, the number of minutes spent watching TV each day is plotted on the y-axis.
| style="height:20px; width:400px; text-align:center;" |The Time of Day is plotted on the x-axis and the temperature is plotted on the y-axis.
|}
==Key Stage 4==
===Meaning===
A '''line graph''' is a [[graph]] in which the points are joined with straight lines.
===About Line Graphs===
: '''Line graphs''' are used to show changes over time.
: '''Line graphs''' use x's to plot points on the [[graph]].
: Time is always plotted on the [[x-axis]].
: The [[variable]] that is being counted or [[measure]]d goes on the [[y-axis]].
===Examples===
{| class="wikitable"
|-
|[[File:LineGraph2.png|center|400px]]
|[[File:LineGraph1.png|center|400px]]
|-
| style="height:20px; width:400px; text-align:center;" |The day of the week is plotted on the X-axis, the number of minutes spent watching TV each day is plotted on the y-axis.
| style="height:20px; width:400px; text-align:center;" |The Time of Day is plotted on the x-axis and the temperature is plotted on the y-axis.
|}
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Line graphs, page 268, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Line graphs, page 281, GCSE Physics; Third Edition, Oxford University Press, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Line graphs, page 7, GCSE Biology; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Line graphs, pages 56, GCSE Combined Science Trilogy 2, Hodder, AQA '']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Line graphs, page 131, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Line graphs, pages 8, 80, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']
====OCR====
:[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Line graphs, page 13, Gateway GCSE Biology, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Line graphs, pages 13, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Line graphs, pages 13-15, 302-305, Gateway GCSE Chemistry, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Line graphs, pages 8, 70, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR '']