Show that value(A + b) = value(A) + b for any constant b, where by A + b = (ai j + b) is meant A plus the matrix with all entries = b. Show also that (X, Y) is a saddle for the matrix A + b if and only if it is a saddle for A.

Show that value(A + b) = value(A) + b for any constant b, where by A + b = (ai j + b) is meant A plus the matrix with all entries = b. Show also that (X, Y) is a saddle for the matrix A + b if and only if it is a saddle for A.

Show that value(A + b) = value(A) + b for any constant b, where by A + b = (ai j + b) is meant A plus the matrix with all entries = b. Show also that (X, Y) is a saddle for the matrix A + b if and only if it is a saddle for A.
Show that value(A + b) = value(A) + b for any constant b, where by A + b = (ai j + b) is meant A plus the matrix with all entries = b. Show also that (X, Y) is a saddle for the matrix A + b if and only if it is a saddle for A.