Answer
(a) See graph.
(b) $y = 3400x - 7\times10^6$
(c) Abnormal.
Work Step by Step
(a) We can use the data to make a scatterplot as shown in the figure.
(b) For the year 1976-2002, we can find a regression line as $y = 3400x - 7\times10^6$ as shown in the figure together with the data.
(c) A data point in the housing "bubble" represents a price that was abnormal, which means that it deviated from the normal trend.
