11.1 From Linear to Quadratic: Meeting the Quadratic Equation
Point 1 of 5
11.1.1 Why a Squared Term Shows Up
Core idea
A linear equation tracks "how far you walk," but the area of a square plot changes with its side length — double the side and the area quadruples, and that's where x² is born.
Module goal. Picking up from the last stage's linear equations, learn to spot equations with a squared term and understand both their standard look and what a "solution" means.
eastmath.com · 11.1 From Linear to Quadratic: Meeting the Quadratic Equation · 11.1.1 Why a Squared Term Shows Up