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)

Algebra ->  Equations -> 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)       Log On


   

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) About Me  (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)