Part I: Reflection about a line through the origin in R². In the context of linear transformations, the only lines we are permitted to reflect across in R? must go through the origin. (Why?) Simple examples such as reflections across the lines x = 0, y = 0, and y = x were presented in Section 6.2. In this part of the project, we aim to determine in general the matrix representation for the linear transformation T that reflects points of R? across an arbitrary line y = mx passing through the origin, where m is an arbitrary, fixed real number. (a) Determine a nonzero vector vị in R? such that T(v1) = v1. (b) Determine a nonzero vector v2 in R? such that T(v2) = -v2. (c) Explain why B = {v1, v2} is a basis for R2.
Part I: Reflection about a line through the origin in R². In the context of linear transformations, the only lines we are permitted to reflect across in R? must go through the origin. (Why?) Simple examples such as reflections across the lines x = 0, y = 0, and y = x were presented in Section 6.2. In this part of the project, we aim to determine in general the matrix representation for the linear transformation T that reflects points of R? across an arbitrary line y = mx passing through the origin, where m is an arbitrary, fixed real number. (a) Determine a nonzero vector vị in R? such that T(v1) = v1. (b) Determine a nonzero vector v2 in R? such that T(v2) = -v2. (c) Explain why B = {v1, v2} is a basis for R2.
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Matrices And Determinants
Section: Chapter Questions
Problem 5P
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