Question: Line A: y = 1.5 + 0.5x, Line B: y = 1.125 + 0.375x Data points: In each of Exercise, we have presented two linear

Line A: y = 1.5 + 0.5x, Line B: y = 1.125 + 0.375x Data points:x 1 155 y 1 3 2 4

In each of Exercise, we have presented two linear equations and a set of data points. For each exercise,

a. Plot the data points and the first linear equation on one graph and the data points and the second linear equation on another.

b. Construct tables for x, y, ˆy, e, and e2 like.

c. Determine which line fits the set of data points better, according to the least-squares criterion.

x 1 155 y 1 3 2 4

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