Answer
True
Work Step by Step
By definition, if $Ax = b$ is a linear system of $m$ equations in $n$ unknowns, seek to minimize the quantity ϵ(x) = ||Ax − b|| by an appropriate choice of x, say $x_0$. Thus, $||Ax_0-b||\lt||Ax-b|| \forall x \in R^n$
