pre algebra

Explain how to write a function rule from the table below. Then write a function rule.
x: 2, 4, 6
y: 1, 0, -1
please help, I don't know how to find the answer

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  1. the function rule tells you how to get y from x

    x is increasing by 2, while y decreases by 1
    ... this means the slope is -1/2

    try some values to see if you can find the y-intercept

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    posted by R_Scott

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