Find a 3 by 3 matrix that scales the point (x,y,z) by 2 in the x direction and 4.5 in the direction, but does not adjust the scaling of the y direction?

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Determinants
Section3.CM: Cumulative Review
Problem 10CM: Find ATA for the matrix A=[531246]. Show that this product is symmetric.
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Find a 3 by 3 matrix that scales the point (x,y,z) by 2 in the x direction and 4.5 in the direction, but does not adjust the scaling of the y direction?

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