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If f(x) = x + 1, find f (x + 12).

1 Answer

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f(x) = x + 1

To find f (x + 12), you have to replace the x-variable in the function with the value x+12, as follows:

f(x+12) = (x + 12) + 1

f(x+12) = x + (12 + 1)

f(x+12) = x + 13

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