The purchase price of a home y (in $1000) can be approximated based on the annual income of the buyer (in $1000) and on the square footage of the home according to
The table gives the incomes of three buyers, the square footages of the home purchased, and the corresponding purchase prices of the home.
a) Use the data to write a system of linear equations to solve for a, b, and c.
b) Use a graphing utility to find the reduced row-echelon form of the augmented matrix.
c) Write the model
d) Predict the purchase price for a buyer who makes $100000 per year and wants a home.