SOLUTION: If [x y z]B= [l m n o p], then the order of the matrix B is?

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Question 616567: If [x y z]B= [l m n o p], then the order of the matrix B is?

Answer by jsmallt9(3758) About Me  (Show Source):
You can put this solution on YOUR website!
[ x y z ] is a 1x3 matrix
B must have the same number of rows as this has columns. Otherwise multiplication would not be possible. So B must have 3 rows.

[ l m n o p ] one a 1x5 matrix. It has, as you sould expect, the same number of rows as [ x y z ], 1. And it will have the same number of columns as B. So B must have 5 columns, too.

So B has 3 rows and 5 columns. IOW: B is 3x5.