Consider the linear transformation T: R² → R² that projects orthogonally onto the y-axis. (a) As a review, determine T(1) and T(2) geometrically and use your answers to write the matrix for T. (b) Show how to repeat the process we used in the earlier problems to find the matrix for T. Note: you should get the same matrix, of course.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.6: Introduction To Linear Transformations
Problem 55EQ
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3. Consider the linear transformation T: R² → R² that projects orthogonally onto the y-axis.
(a) As a review, determine T(₁) and T(2) geometrically and use your answers to write the
matrix for T.
(b) Show how to repeat the process we used in the earlier problems to find the matrix for T.
Note: you should get the same matrix, of course.
Transcribed Image Text:3. Consider the linear transformation T: R² → R² that projects orthogonally onto the y-axis. (a) As a review, determine T(₁) and T(2) geometrically and use your answers to write the matrix for T. (b) Show how to repeat the process we used in the earlier problems to find the matrix for T. Note: you should get the same matrix, of course.
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