21.5.5 A Wrap-Up: Translating Between Numbers and Shapes
21.5 Linear Functions Tie Together Equations and Inequalities
Point 5 of 5
21.5.5 A Wrap-Up: Translating Between Numbers and Shapes
Core idea
An equation means finding the crossing and an inequality means comparing heights, so solving turns into "finding the spot on the graph."
Module goal. Use the lens of the straight line to unify linear equations and inequalities, turning algebraic solving into "reading heights off the graph."
eastmath.com · 21.5 Linear Functions Tie Together Equations and Inequalities · 21.5.5 A Wrap-Up: Translating Between Numbers and Shapes