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A cost function is the constant f(x) = 7. Its derivative is:
AIt is 7
BIt is 0
CIt is 1
DIt is 14
Answer & Solution
Correct answer: B. It is 0
1. A constant never changes.
2. Its rate of change is nothing.
3. The derivative is 0.
_Source: OpenStax Calculus Volume 1, Chapter 3, Derivatives._
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