A 2-column table with 8 rows titled Cars Sold. Column 1 is labeled Day with entries 1, 2, 3, 4, 5, 6, 7, 8. Column 2 is labeled Number Sold with entries 3, 5, 4, 6, 8, 12, 14, 15. The table shows the number of cars sold per day at a dealership during a promotional sale. What is the equation of the least-squares regression line, where is the predicted number of cars sold and x is the day? Round each coefficient or constant to the nearest tenth. y^ = ____ + ____x