Big-M Method (Edexcel A-Level Further Mathematics): Quizzes

Two-stage Simplex method

Negative coefficient $-M$

Positive coefficient $+M$

Surplus and artificial variables

Slack variable

To ensure they are removed from solution

$Z =$ original $- M$(artificial)

They must exit the basis

Using $+M$ instead of $-M$

Modify objective to include $M$ terms