If \( m \) is the minimum value of \( f(x, y)=x^{2}-4 x+y^{2}+6 y \... VIDEO
If \( m \) is the minimum value of \( f(x, y)=x^{2}-4 x+y^{2}+6 y \) when \( x \) and \( y \) are subjected to the restrictions \( 0 \leq x \leq 1 \) and
\( \mathrm{P} \) \( 0 \leq y \leq 1 \), then the value of \( |m| \) is
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