Linear Inequalities Intro: Graph on Number Line & 2D Plane with Shading

Описание: In this video we introduce linear inequalities and explain how they differ from equations. You’ll learn how to represent inequalities on a number line—using open or solid points and rays to indicate the direction of the solution set—and how to extend this visual approach to the coordinate plane. The lesson covers drawing the boundary line (solid for “or equal to,” dashed for strict inequality), using a test point to determine which side to shade, and interpreting the resulting half‑plane as the set of all points that satisfy the inequality.