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For f(x) = 3x^2, a student pulls the 3 out and differentiates the rest. The derivative is:

A6x
B9x
C3x
D2x
Answer & Solution
Correct answer: A. 6x
1. The constant stays multiplied through. 2. The derivative of x^2 is 2x. 3. The derivative is 6x. _Source: OpenStax Calculus Volume 1, Chapter 3, Derivatives._
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