SOLUTION: Evaluate the function. given that f(x) = sqrt (-5x) , find f(-k). A) sqrt (kx) B) sqrt (5k) C) sqrt (-5k) D) sqrt (-kx)

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Question 201680: Evaluate the function.
given that f(x) = sqrt (-5x) , find f(-k).
A) sqrt (kx)
B) sqrt (5k)
C) sqrt (-5k)
D) sqrt (-kx)

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Evaluate the function.
given that f(x) = sqrt (-5x) , find f(-k).
------------
Sub -k for x
f(-k) = sqrt(-5*-k)
f(-k) = sqrt(5k)

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