Question 4 • Common Core Algebra I B-IC
For a line of best fit, compare the choices with the trend in the data. The least-squares slope for these points is about 0.62, and the intercept is about 0.56. Rounding these to the nearest tenths gives y = 0.6x + 0.6, choice A. Choice D has a slope of 0.5, which is less close to the calculated slope.
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