1. Graphs and how to make them
RIGHT!!!
Mrs. Reynolds
Physics

2. What is wrong with this graph?

3. 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.

4. What is wrong with this graph?

5. 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.

6. What is wrong with this graph?

7. 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).
• C
• B
• A

8. What is wrong with this graph?

9. What is wrong with this graph?
We need one straight
trendline. It is not connect-
the-dots!

10. What is wrong with this graph?

11. 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.

12. Resources
• For more information, check out:
http://jacobsphysics.blogspot.com/2011/06/b
ad-graphs-common-mistakes-on-data.html
• And check out:
http://jacobsphysics.blogspot.com/2011/06/b
ad-graphs-part-ii-dont-force-best-fit.html