If $f ( x ) = - 3 x ^ { 2 } - 4 x$, find the following limit, if it exists.
$$\lim _ { h \rightarrow 0 } \frac { f ( x + h ) - f ( x ) } { h }$$
A) $- 6 x - 4$
B) $- 3 x - 4$
C) $2 x - 4$
D) $- 6 x$
E) The limit does not exist.

Name: If $f ( x ) = - 3 x ^ { 2 } - 4 x$, find the following limit, if it exists. \[\lim _ { h \rightarrow 0 } \frac { f ( x + h ) - f ( x ) } { h }\] A) $- 6 x - 4$ B) $- 3 x - 4$ C) $2 x - 4$ D) $- 6 x$ E) The limit does not exist.
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Question

Quizplus · Accepted Answer

The Answer is A

If f(x)=−3x2−4xf ( x ) = - 3 x ^ { 2 } - 4 xf(x)=−3x2−4x

If $f ( x ) = - 3 x ^ { 2 } - 4 x$