Download - Graphs and how to make them right!!!
![Page 1: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/1.jpg)
Graphs and how to make them RIGHT!!!
Mrs. ReynoldsPhysics
![Page 2: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/2.jpg)
What is wrong with this graph?
![Page 3: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/3.jpg)
What is wrong with this graph?It is too small!!! A larger scale should be used so that it takes up most of the page.
![Page 4: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/4.jpg)
What is wrong with this graph?
![Page 5: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/5.jpg)
What is wrong with this graph?The trendline is not drawn correctly giving an inaccurate slope. The red line I have drawn goes much more closely to all the data points.
![Page 6: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/6.jpg)
What is wrong with this graph?
![Page 7: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/7.jpg)
What is wrong with this graph?The scale is wrong on the y-axis. From point A to point B, there is a change of 9 (because 38-29=9) but from point B to point C there is a change of 6 (because 54-38=6).
• A
• B
• C
![Page 8: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/8.jpg)
What is wrong with this graph?
![Page 9: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/9.jpg)
What is wrong with this graph?We need one straight trendline. It is not connect-the-dots!
![Page 10: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/10.jpg)
What is wrong with this graph?
![Page 11: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/11.jpg)
What is wrong with this graph?The trendline is not straight. We need to use a ruler or something else with a straight edge to make sure our trendline is STRAIGHT.
![Page 12: Graphs and how to make them right!!!](https://reader036.vdocuments.site/reader036/viewer/2022082512/554fb9edb4c9050e7d8b47e2/html5/thumbnails/12.jpg)
Resources
• For more information, check out: http://jacobsphysics.blogspot.com/2011/06/bad-graphs-common-mistakes-on-data.html
• And check out: http://jacobsphysics.blogspot.com/2011/06/bad-graphs-part-ii-dont-force-best-fit.html