Our model is

When x=82 degrees F,

We round up to
Answer: 64 bags
Not sure why it says y^=34 in the question; I'm ignoring that.
The residual is the difference between the actual y and the predicted y,

Answer: 2
Answer: just divide 44.88 by 12 so you will get 3.74
Step-by-step explanation:
Point f ends up being (-4,-5)
point d is (-5,-1)
and point e is (4,-1)