Find All Relative Extrema of the Function $f ( x ) = x ^ { 8 / 9 } - 8$

question 78

Multiple Choice

Find all relative extrema of the function $f ( x ) = x ^ { 8 / 9 } - 8$ . Use the Second Derivative Test where applicable.

• A)relative max: f(1)= -7
• B)relative min: f(0)= -8
• C)no relative max or min
• D)both A and B
• E)none of the above