On a graph, which axis represents frequency?

In a typical graph used to represent sound or auditory information, the horizontal axis is conventionally reserved for frequency. Frequency, measured in hertz (Hz), represents the pitch of a sound, indicating how many cycles of sound wave occur per second.

This arrangement allows for a clear visualization of how sounds of different frequencies relate to each other across a range. In audiology, understanding this graph structure is essential, as it helps in interpreting audiograms, sound frequency responses, and hearing tests. By placing frequency on the horizontal axis, audiologists and technicians can easily analyze and compare auditory performance across various pitches.

Other axes mentioned in the answer choices do not typically represent frequency in this context. The vertical axis usually represents the intensity or amplitude of sound, while the diagonal axis is not a standard in presenting auditory data. The magnitude axis, which could imply loudness, also confirms that frequency is most appropriately placed along the horizontal to convey a coherent and understandable auditory range.