__Graphing Rules:__

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**On paper: **

**Use a ruler for Axis****Title must be appropriate and show a relationship between variables (The Effect of X on Y).****Both X and Y axis must be labeled. (X axis is the independent variable and the Y axis is the dependent variable)****All units must be labeled. Abbreviations are fine. (cm, etc)****Graph should be as large as possible for accuracy.****Point of origin makes sense. Doesn’t always start a (0,0)****Units are in even increments per axis.****Do not connect the points on a line graph unless instructed to do so. Line up your ruler so that half of the points are on either side of the ruler to make a "best fit" or "trend" line. "Best fit" and "trend" lines DO NOT necessarily touch all plot points (and usually won't touch many of them)!****If needed use a color code or key and label for multiple lines.**

**On Excel:**

**Same as above except for #8.****You will choose a trend line in excel and the computer will make a precise line for you.**