Determine if the function is increasing or decreasing over the interval indicated.
-$y = - 6 x ^ { 3 } ; x

Name: Determine if the function is increasing or decreasing over the interval indicated. -$y = - 6 x ^ { 3 } ; x < 0$ A) Increasing B) Decreasing
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Question

Determine if the function is increasing or decreasing over the interval indicated.
-$y = - 6 x ^ { 3 } ; x < 0$
A) Increasing
B) Decreasing

Quizplus · Accepted Answer

The function $y = -6x^3$ is decreasing for $x < 0$ because the derivative $y' = -18x^2$ is negative for all $x < 0$, indicating a decreasing function in that interval.

Determine If the Function Is Increasing or Decreasing Over the Interval