Question

what is the purpose of the x - axis in a graph?
a. to represent the independent variable
b. to measure volume
c. to indicate temperature
d. to show the percentage of the whole

Explanation:

In a graph, the x - axis is used to represent the independent variable. The independent variable is the variable that is manipulated or changed in an experiment or study. For example, in a graph of distance vs. time, time (the independent variable) is usually plotted on the x - axis. Measuring volume (option b) is typically done with units like liters or cubic meters and not directly related to the x - axis in a general graph. Indicating temperature (option c) is a specific type of measurement and not the general purpose of the x - axis. Showing the percentage of the whole (option d) is more related to a pie chart's function rather than the x - axis of a general graph.

Answer:

A. To represent the independent variable