Help! I keep losing points in my graphs!
Identify the Name of the Dependent Variable: ____________________
This is the Y-axes. It is the Response measured.
The Units of the Dependent Variable: ____________
Identify the Name of the Independent Variable: ____________________
This is the X-axes. This is fixed by you or nature.
The Units of the Independent Variable: ____________
Second: SCALES and LABELS
Decide the Scale for Y and X. How?
Determine the Range for X (minimum value= __________; Maximum value= ___________ )
Determine the Range for Y (minimum value= __________; Maximum value= ___________ )
Now look at you graph paper and space and create a scale for each axes. (Example: One unit every
2 lines. Or one unit every 5 lines. Or every line is 4 units.)
Scale the X-Y axes (as a ruler). Decide if you need the (0,0) for slope purposes.
Write the Name and Unit by the X and the Y axes.
Select a descriptive Title for your graph.
Bad Examples: Good Examples:
Enzymes Timeline of Hydrolysis of Proteins by Enzymes
Molecules of sugar Hydrolysis of carbohydrates
Consumption of glucose at night in plants
Average number of grams of Glucose
A line graph or a bar graph?
Is it a continuum over time, intensity? a line graph
It is a change over time (continuum) for plant A and for Plant B? Two line graphs-You need a
It is a comparison of two samples- no continuum? a bar graph-You need a key