Use the Following Information for Questions:
the Simple Linear $\hat{y}$

Multiple Choice

Use the following information for questions:
The simple linear regression equation can be written as $\hat{y}$ = $b_{0}$ + $b_{1}x$
-In the simple linear regression equation, $b_{1}$ represents the slope of the regression line. Which of the following gives the best interpretation of the slope?

A) It is an estimate of the average value of y at any specified value of x.
B) It indicates how much of a change there is for the predicted or average value of y when x increases by one unit.
C) It is the value of y, when x = 0.
D) It is the value of x, when y = 0.