Line charts in Power BI - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a line chart used for in Power BI?

A line chart shows trends over time or ordered categories by connecting data points with a line. It helps see how values change.

beginner

How do you add a line chart in Power BI?

Select the line chart icon from the Visualizations pane, then drag fields to the Axis and Values areas.

intermediate

Why should you use a continuous axis in a line chart for dates?

A continuous axis shows smooth time progression without gaps, making trends easier to understand.

intermediate

What is a common mistake when using line charts?

Using line charts for categorical data without order can confuse viewers because lines imply order or progression.

beginner

How can you improve accessibility in line charts?

Use clear labels, high contrast colors, and provide alternative text descriptions for screen readers.

What does a line chart best show?

A Individual data points only

B Parts of a whole

C Trends over time

D Data distribution

Line charts connect points to show how values change over time or ordered categories.

Which axis type is best for dates in a line chart?

A Categorical

B Discrete

C Logarithmic

D Continuous

Continuous axis shows smooth progression of dates without gaps.

What happens if you use a line chart for unordered categories?

A It may confuse viewers

B It clearly shows trends

C It shows parts of a whole

D It creates a pie chart

Lines imply order, so unordered categories can confuse the viewer.

Which Power BI pane lets you add a line chart?

A Visualizations

B Fields

C Filters

D Data

The Visualizations pane contains the line chart icon to add it to the report.

How can you make line charts more accessible?

A Use low contrast colors

B Add alternative text and clear labels

C Avoid labels

D Use many colors without explanation

Clear labels, high contrast, and alt text help all users understand the chart.

Explain how to create a line chart in Power BI and why you would use it.

Think about the steps in the Visualizations pane and the purpose of line charts.

Describe best practices for using line charts effectively and accessibly.

Consider what makes a line chart easy to read and understand for everyone.