Interpret the slope of the linear model provided in the graph:

Incorrect answer:

The lowest score earned was a 48.695.

For every point earned on the test, that student studied 0.2129 minutes.

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The longer that a student studied, the higher the test score would be.

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The test score increased 10 points for every 48.695 minutes of studying.

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For each minute spent studying for the test, the test score would increase an average of 0.2129 points.