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What is a function rule?

User RobinvdA
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A function rule is where you express the dependent variable, y, in terms of the independent variable, x.
User Nagabhushan Baddi
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The process used to change input and output. Usually, it is given as a formula. For example, the statement f(x) = 3x + 5 gives the “rule” of the function (multiply the input by 3, add 5, and you get your output)
User Prakash
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