Answer:
predicted GPA=9.21, residual= 1.36, a correct value of slope would be 0.09
Step-by-step explanation:
y=0.1x -3.49
y: GPA
x: IQ
y=0.1(127)-3.49
y= 9.21
Predicted GPA= 9.21
residual= 9.21- 7.85= 1.36
The equation doesn't model the exact relationship between GPA and IQ.
A better slope value could be
7.85= m(127)-3.49
m=0.09