Answer:
-4.5
Step-by-step explanation:
The predicted value from the model is calculated by substituting x with 4 in the regression equation;
y = 5(4) - 2.5
y = 17.5
The actual value when x is 4 is given as 13. The residual is simply the difference between the actual and the predicted value;
residual = actual value - predicted value
residual = 13 - 17.5
residual = -4.5
A-140
A starts at 0 and from the side you're measuring it would be 140 and not 40.
the scale factor is 4 to 1, or just 4.
