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Given f(x)=-4x-1, find f(-5). Answer:

Given f(x)=−4x−1 f(x)=-4 x-1 , find f(−5) f(-5) .\newlineAnswer:

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Full solution

Q. Given f(x)=−4x−1 f(x)=-4 x-1 , find f(−5) f(-5) .\newlineAnswer:
  1. Substitute xx with −5-5: Substitute xx with −5-5 in the function f(x)=−4x−1f(x) = -4x - 1 to find f(−5)f(-5).\newlineCalculation: f(−5)=−4(−5)−1=20−1=19f(-5) = -4(-5) - 1 = 20 - 1 = 19.

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