1. A study on housing prices in Toronto looked at the relationship between the size (in hundreds of square feet) and the the price (in hundreds of thousands of dollars)

for houses. Housing data was collected in pairs of the form (size, price) for each house,and was as follows: D = {(10,8), (12, 14), (11, 11), (5, 8)} (a) (8 marks) Find the equation y = mx + b of the best linear approximation of this data. Show your work, and explain how finding this equation is related to least squares. (a) (2 marks) A real estate agent is selling a 2000 square foot house in Toronto.Use part (a) to estimate the price of the house.