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Mathematics 13 Online
OpenStudy (anonymous):

Which of the following rules could represent the function shown in the table? x y -1 -1 0 1 1 3 f(x) = -2x f(x) = 2x - 1 f(x) = 2x + 1

OpenStudy (solomonzelman):

C. Substitute a number for x into the function and see if the result equals the y in the table.

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