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I have a question where students are given a list of points in tabular form. They must graph the points and write the equation of the line that contains all the points. Should this be classified as A-CED.2 or F-BF.1 or F-LE.2 or all of these? I’m having trouble distiguishing among these three standards.
It depends on the wording of the question. Does it mention functions explicitly at all? If it’s just about equations of lines, then the F-BF.1 and F-LE.2 classifications would not be appropriate. But if the equation is intended to be viewed as defining one variable as a function of the other, then they might be. One reason for having A and F as separate categories is to reinforce the distinction between equations in two variables on the one hand, and functions on the other, a distinction that often seems to get lost.
It depends on the wording of the question. Does it mention functions explicitly at all? If it’s just about equations of lines, then the F-BF.1 and F-LE.2 classifications would not be appropriate. But if the equation is intended to be viewed as defining one variable as a function of the other, then they might be. One reason for having A and F as separate categories is to reinforce the distinction between equations in two variables on the one hand, and functions on the other, a distinction that often seems to get lost.
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