Question

NEED HELP ASAP.

Answer 1

We know that

the residual value is when you subtract the predicted value from the observed value.
[Residual value] = [Observed value]–[Predicted value]
so
[Observed value]=(1, 43), (3, 36), (5,22), (6, 25), (8,14)
[Predicted value]=(1, 44), (3, 35), (5,26), (6, 22), (8,13)

for x=1
[Residual value] = [43]–[44]-----> -1
point (1,-1)

for x=3
[Residual value] = [36]–[35]-----> 1
point (3,1)

for x=5
[Residual value] = [22]–[26]-----> -4
point (5,-4)

for x=6
[Residual value] = [25]–[22]-----> 3
point (6,3)

for x=8
[Residual value] = [14]–[13]-----> 1
point (8,1)

see the answer in the attached figure