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Find the stationary points of this function f x -x 3 plus 9x 2-15x-10?
Wiki User
ā 10y ago
f(x) = -x3 + 9x2 - 15x - 10
=> df/dx = -3x2 + 18x - 15 = -3*(x - 1)*(x - 5)
df/dx = 0 => x = 1 or x = 5
So, the stationary points are x = 1 and x = 5
Wiki User
ā 10y ago
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