The line of best fit is y = 142.2x - 11,156. This line shows the comparison of house size in comparison to the cost of the house. If the size of the house, 1,800 square feet, gives the cost of $250,000, what is the y value given the line of best fit?

Answer 1

To find the y value given the line of best fit, we will substitute x = 1,800 into the equation y = 142.2x - 11,156.

y = 142.2(1,800) - 11,156
y = 255,960 - 11,156
y = 244,804

Therefore, the y value when the size of the house is 1,800 square feet is $244,804.