SOLUTION: Let f(x) = 4x + 5 and g(x) = 9x − 4. Find the function. f − g (f − g)(x) = Find the domain. (Enter your answer using interval notation.)=

Algebra ->  Coordinate-system -> SOLUTION: Let f(x) = 4x + 5 and g(x) = 9x − 4. Find the function. f − g (f − g)(x) = Find the domain. (Enter your answer using interval notation.)=       Log On


   

Question 1176846: Let
f(x) = 4x + 5 and g(x) = 9x − 4. Find the function. f − g
(f − g)(x) =
Find the domain. (Enter your answer using interval notation.)=

Answer by MathLover1(20855) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29+=+4x+%2B+5
g%28x%29+=+9x+-4

%28f+-+g%29%28x%29+=4x+%2B+5-%289x+-4%29
%28f+-g%29%28x%29+=4x+%2B+5-9x+%2B+4
%28f+-+g%29%28x%29+=-5x+%2B+9

domain: R (all real numbers)
interval notation: (-infinity,infinity)