I plot some data and get a correlation coefficient of .4. The sample standard deviation for my Y variable is 10, and my sample standard deviation for my X variable is 12. The average Y value is 32 and...

I plot some data and get a correlation coefficient of .4.  The sample standard deviation for my Y variable is 10, and my sample standard deviation for my X variable is 12.  The average Y value is 32 and the average X value is 20.  What is the value of my regression's intercept?