What does the y-axis typically represent in a Power BI chart?

In a Power BI chart, the y-axis typically represents numeric values. This axis is crucial for showing the magnitude or scale of the data being visualized. For example, in a bar chart or line graph, the y-axis indicates amounts, counts, or other measurable quantities that are plotted against the categories or time frames represented on the x-axis. This clear separation allows users to understand the relationship between the data points better, such as how they change over time or how they compare across different categories.

Numeric values are essential in data visualization because they provide the quantitative basis for analysis. They allow users to see patterns, trends, and outliers within the dataset. In contrast, categories, textual descriptions, and qualitative assessments may play roles on the x-axis, serving as labels or classifications, but they do not convey the same level of quantitative information that the y-axis does. Therefore, understanding that the y-axis represents numeric values is fundamental for interpreting data visualizations effectively in Power BI.