Part A. Interpreting Graphs
1. The type of graph that best shows the relationship
between two variables is the line graph. A line
graph has one or more lines connecting a series
of points. See Figure 1. Along the horizontal axis,
or x-axis, you will find the manipulated variable
in the experiment. Along the vertical axis or y-axis,
you will find the responding variable.
Numerical scale
y
Line Graph
Numerical scale
Figure 1
Biology Laboratory Manual A/Laboratory Skills 49 which plant grew the tallest