Lesson Plan

Interpret the slope of a linear model as a rate of change, with correct units and a sentence about the real quantities

Interpret the y-intercept as the predicted value when x = 0, with units, often as a baseline or starting value

Attach correct units to both slope and intercept in every interpretation

Judge when an intercept is meaningful and when it is a mathematical artifact (x = 0 impossible or far outside the data)

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.