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22 April, 15:54

What is the rule for the function shown in the table?

Input x - 2 - 1 0 1 2

Output y - 8 - 5 - 2 1 4

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  1. 22 April, 15:57
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    Each of the input changes is 1 unit.

    Each of the output changes is 3 units, so the function is linear with a slope of 3.

    The output is - 2 when the input is 0, so the function is

    ... y = 3x - 2
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