Thank you Ms. Sue for the answer. I just wanted to know how you arrived at that $31000, because I have a number of problems like that one. Thank you.

Mary

Here's your original post:

linear correlation between the number of years in college versus average pay. average pay= 1,000 + 15,000x where x is the number of years in college. What would your average pay be if you were in college 2 years based on the model?

1,000 + (15,000 * 2) = 31,000