Linear Algebra and Its Applications · Problem 1.2.1

Matrices and Gaussian Elimination — Gilbert Strang

Mathematics · geometry-of-linear-equations

Problem

For the equations x+y=4x + y = 4, 2x−2y=42x - 2y = 4, draw the row picture (two intersecting lines) and the column picture (combination of two columns equal to the column vector (4,4)(4,4) on the right side).

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