SOLUTION: Find a function value, if possible. f(x)=|x|/x (a) f(3) (b) f(-3) (c) f(x-8)

Algebra ->  Functions -> SOLUTION: Find a function value, if possible. f(x)=|x|/x (a) f(3) (b) f(-3) (c) f(x-8)      Log On


   

Question 1165316: Find a function value, if possible.
f(x)=|x|/x
(a) f(3)
(b) f(-3)
(c) f(x-8)
Answer by ikleyn(52797) About Me  (Show Source):
You can put this solution on YOUR website!
.

(a)  f(3) = abs%283%29%2F3 = 3%2F3 = 1.



(b)  f(-3) = abs%28-3%29%2F%28-3%29 = 3%2F%28-3%29 = -1.



                          1, if x > 8
(c)  f(x-8) = abs%28x-8%29%2F%28x-8%29 =    not defined if x = 8
                          -1, if x < 8.

Solved.