Answer:
Option A) It is a constant.
Step-by-step explanation:
We are given the following information in the question:
The general form of regression equation is:
[tex]Y = a + bX[/tex]
[tex]Y-bX = a[/tex]
where Y is the dependent variable and we want to predict the value of Y and X is the independent variable and the predictor.
If we compare the above equation with the point slope form:
[tex]y = mx + c[/tex]
where m is the slope of the line and c is the y-intercept.
We get,
Slope, m = b
Y-intercept = a
Thus, a is the y-intercept that is the value of Y when X is 0.
It is a constant.
It can also be interpreted as the difference of Y and X when slope is 1.