Final answer:
The vertical right-hand side of a chart typically denotes the y-axis, representing the dependent variable in a graph. The y-axis is contrasted with the x-axis, which stands for the independent variable.
Step-by-step explanation:
The scales on the vertical right-hand side of the chart represent the y-axis. Graphs typically have two axes, one horizontal (x-axis) and one vertical (y-axis). The x-axis usually represents the independent variable, while the y-axis represents the dependent variable. On a straight-line graph, the relationship between the two variables is given by the equation y = mx + b, where m is the slope of the line and b is the y-intercept.
When constructing graphs, it's important to choose a scale that clearly shows all the data and makes it easy to identify trends. The scale should be appropriate to the significant figures of the measurements being plotted. This ensures the graph is precise and the data relationships are easy to interpret.