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# charting quiz answers
Measure the acceleration on the micro:bit in the "x" direction.
## Name
## Directions
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Use this activity document to guide your work in the [charting activity ](/lessons/charting )
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Answer the questions while completing the tutorial. Pay attention to the dialogues!
## 1. Why are you creating a 'forever' loop?
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We are creating a forever loop to constantly display the appropriate brightness on the LED display.
## 2. Write the line of code to measure the acceleration with respect to the "x" axis and display this value in a bar graph.
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```blocks
led.plotBarGraph(input.acceleration(Dimension.X), 0)
```
## 3. After vigarously moving the micro:bit from side to side along the "x" axis for a sufficient amount of time,insert the Excel graph for displaying a line chart used to display trends over time.
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