Page 297 - Elementary_Linear_Algebra_with_Applications_Anton__9_edition
P. 297
(a)
(b)
(c)
(d)
In each part, use the standard matrix for T to find ; then check the result by calculating directly.
7.
(a) ;
(b) ;
Use matrix multiplication to find the reflection of (−1, 2) about
8.
(a) the x-axis
(b) the y-axis
(c) the line
Use matrix multiplication to find the reflection of (2, −5, 3) about
9.
(a) the -plane
(b) the -plane
(c) the -plane
