Find the derivative of the function using the definition of derivative.
-$$f ( x ) = 3 x ^ { 2 } - 4 x$$
A) $f ^ { \prime } ( x ) = 2 x - 4$
B) $f ^ { \prime } ( x ) = 6 x - 4$
C) $f ^ { \prime } ( x ) = 3 x - 4$
D) $f ^ { \prime } ( x ) = 6 x$

Question

Quizplus · Accepted Answer

The derivative of $f(x) = 3x^2 - 4x$ using the definition of derivative is $f'(x) = 6x - 4$.

Find the Derivative of the Function Using the Definition of Derivative