Page 686 - Elementary_Linear_Algebra_with_Applications_Anton__9_edition
P. 686

(a) a factor of  in the y-direction

(b) a factor of  in the x-direction

     Find the matrix that compresses or expands by
10.

         (a) a factor of in the y-direction

(b) a factor of 6 in the x-direction

     In each part, describe the geometric effect of multiplication by the given matrix.
11.

         (a)

(b)

(c)

     Express the matrix as a product of elementary matrices, and then describe the effect of multiplication by the given matrix in
12. terms of compressions, expansions, reflections, and shears.

         (a)

         (b)

         (c)

         (d)

          In each part, find a single matrix that performs the indicated succession of operations:
13.
   681   682   683   684   685   686   687   688   689   690   691