Tableau Desktop Foundations Practice Question

When building a dual-axis line chart that compares Sales and Profit Ratio over time in Tableau Desktop, which action ensures both axes share the same numeric range so the two lines align correctly?

Drag the Measure Names field to the Color shelf on the Marks card.
Open Show Me and switch the visualization to Stacked Bars.
Convert the view to a combined axis by dragging one measure pill directly on top of the other.
Right-click either axis in the view and select "Synchronize Axis".

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Answer Description

A dual-axis chart initially plots each measure on its own independent scale. To make the visual comparison meaningful, you must synchronize the axes. Doing so forces Tableau to apply the same minimum and maximum values to both measures' axes, keeping the lines on a common scale. Dragging Measure Names to Color only changes mark color, creating a combined axis would remove the dual-axis design, and selecting Stacked Bars replaces the view type entirely-none of these steps synchronizes the axes.

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