SOLUTION: Use the following functions. f(x)=x , g(x)=x-3, h(x)=x^2-9 , k(x)=2x. Find each function. A). (g+k)(x) , B). (k-f)(x) , C). (k/f)(x) , D. (hk)(x) .

Algebra ->  Functions -> SOLUTION: Use the following functions. f(x)=x , g(x)=x-3, h(x)=x^2-9 , k(x)=2x. Find each function. A). (g+k)(x) , B). (k-f)(x) , C). (k/f)(x) , D. (hk)(x) .      Log On


   

Question 998621: Use the following functions. f(x)=x , g(x)=x-3, h(x)=x^2-9 , k(x)=2x.
Find each function. A). (g+k)(x) ,
B). (k-f)(x) ,
C). (k/f)(x) ,
D. (hk)(x) .
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29=x , g%28x%29=x-3, h%28x%29=x%5E2-9 , k%28x%29=2x
Find each function:
A).
%28g%2Bk%29%28x%29=+g%28x%29%2Bk%28x%29=x-3%2B2x=3x-3
B).
%28k-f%29%28x%29=k%28x%29-f%28x%29=2x-x=x
C).
%28k%2Ff%29%28x%29=k%28x%29%2Ff%28x%29=2x%2Fx=2
D.
%28hk%29%28x%29+=h%28x%29%2Ak%28x%29=%28x%5E2-9%29%2A2x=2x%5E3-18x