The points (2, 1.3), (3, 2.0), (4, 2.2), and (5, 2.8) are modeled by the function y = 0.5x + 0.4. which graph correctly displays the residuals of this model?

I think the answer is C. 

Idrk but i think u should figure out the n dia n then the units it will make it way more easier

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,