Question

2. The minimum value of the function f(x) = x - 4|exists at (a) x = 0 (b) x = 2 (C) x = 4 (d) x = -4 ​

Answer 1

f(x) = x - 4

f(x) must be 0

So,

x - 4 = 0

x = 4

Therefore, The correct answer is (c) x = 4

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