Determine if the statement is true or false and justify your
     Determine if the statement is true or false, and justify your answer.  (a) The codomain of a linear transformation is a subset of the range.  (b) All linear transformations T: R^n rightarrow R^m have the form T (x) = Ax for some matrix A. 
  
  Solution
Option A : (FALSE)
Co-Domain is equal to Range and not subset of Range
Option B : (TRUE)
Let A be an m × n matrix with real entries and define T : R n R m by T(x) = Ax.
Such a transformation is called a matrix transformation. Which implies, every linear transformation from R n to R m is a matrix transformation for some matrix A.

