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17 September, 15:00

Let f (x) = x^2 + 2xHow would you explain what f (5) means to a friend?

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  1. 17 September, 18:39
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    I would tell this friend to think of f (5) as them telling you what x is.

    Step-by-step explanation:

    So basically you would be imputing 5 everywhere x is to solve the equation.
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