Answer:
y = 0.9143x - 0.8
Explanation:
Given the data :
Region Temperature Yield (in bushes per acre)
 4 ______ 3
 8 ______ 7
 10 _____ 8
 12 _____ 10
 9 ______ 8
 6 ______ 4
Using technology, the least square regression equation obtained by fitting the data is :
y = 0.9143x - 0.8
Where ;
y = predicted Bush yield, predicted variable 
x = Average temperature, dependent variable
The slope Coefficient = 0.9143
The intercept = - 0.8