x (number of job changes)	4	5	6	6	1	5	9	10	10	3
y (Salary in $1000)	35	34	36	32	32	38	43	37	40	33

x = 59; y = 360; x² = 429; y² = 13,076; xy = 2,196

1. Find x, y, b, and the equation of the least-squares line. (Round your answers for x and y to two decimal places. Round your least-squares estimates to three decimal places.)

2. If someone had x = 4 job changes, what does the least-squares line predict for y, the annual salary? (Round your answer to two decimal places.)