The formula printed above is the equation for a straight line. Another way to describe the formula is that it is the linear regression equation for predicting the value of Y from X. In the equation, b0 is the Y-intercept (the value of Y when X=0), and b1 is the regression coefficient for the predictor variable, X.

(a) What is the predicted value of Y when X1 = 14, b0 = 2.5 and b1 = 3.4?
(b) What is the predicted value of Y when X1 = 22, b0 = 4.3 and b1 = -1.7?

pur-new-sol