Answer:
Option B is correct.
Step-by-step explanation:
Option A:
\(y=-6x^3\)
graph of this function is attached.
Maximum value does not exist for this function.
Option B:
\(y=-5x^4\)
graph of this function is attached.
Maximum value does exist for this function.
Option C:
\(y=5x^6\)
graph of this function is attached.
Maximum value does not exist for this function.
Option D:
\(y=6x^5\)
graph of this function is attached.
Maximum value does not exist for this function.
Therefore, Option B is correct.
