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Interpret slope and intercept of a linear model

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HSS.ID.C.7

**HSS.ID.C.7**: Interpret the slope (rate of change) and the intercept (constant term) of a linear model in the context of the data.

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HSS.ID.C.7: Interpret the slope (rate of change) and the intercept (constant term) of a linear model in the context of the data.

What you'll learn

  1. Interpret the slope of a linear model as a rate of change, with correct units and a sentence about the real quantities
  2. Interpret the y-intercept as the predicted value when x = 0, with units, often as a baseline or starting value
  3. Attach correct units to both slope and intercept in every interpretation
  4. Judge when an intercept is meaningful and when it is a mathematical artifact (x = 0 impossible or far outside the data)

Slides

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Interpreting slope and intercept

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