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Problem Solving (PS) | Re: A function f(x) is defined for all real numbers as f(x) = (x – 1)(x –

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Given that f(x) = (x – 1)(x – 2)(x – 3)(x – 4) and we need to find which of the answer choice isnegative

A.f(0.5)
To find f(0.5) we need to substitute x=0.5 in f(x) = (x – 1)(x – 2)(x – 3)(x – 4)
=> f(0.5) = (0.5 – 1)(0.5 – 2)(0.5 – 3)(0.5 – 4) = NEGATIVE * NEGATIVE * NEGATIVE * NEGATIVE = POSITIVE * POSITIVE =POSITIVE

B.f(1.5)
=> f(1.5) = (1.5 – 1)(1.5 – 2)(1.5 – 3)(1.5 – 4) = POSITIVE * NEGATIVE * NEGATIVE * NEGATIVE = NEGATIVE * POSITIVE = NEGATIVE
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