title: what does "Train it to fit the target concept -2 + x1 + x2 > 0." mean?
body: <p>In machine learning what does "Train it to fit the target concept -2 + x1 + x2 > 0" mean?</p>
  
  <p>is it that if x1 = 0 and x2 = 0 then -2 + 0+ 0 > 0 and since that is impossible then the output is 0?</p>