This response indicates an incomplete application of a reasonable strategy. The student gives a correct equation for the line of best fit (y=–4.5x+32.7). The date in April, if the average March temperature were 3.5°C, is correct (17th); however, an explanation is not given. Although the student correctly states that it is inappropriate to use the equation if the average March temperature were 14°C, the justification is incorrect. This response demonstrates a conceptual understanding and analysis of the problem.
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