Posted by Anonymos on Tuesday, September 4, 2012 at 11:33pm.
for the given functions f and g find the following and state the domain of each result
f(x)=3x+1/8x9; g(x)=5x/8x9
A) (f+g)(x)=?
B)domain of (f+g)
c) (f/g)(x)=?
d) domain of f/g?
please show work

MATH  Anonymos, Tuesday, September 4, 2012 at 11:50pm
ok genius, When you type fast sometimes it happens...move along!

MATH  Steve, Wednesday, September 5, 2012 at 11:29am
assuming you mean
f(x) = (3x+1)/(8x9)
g(x) = 5x/(8x9)
(f+g)(x) = [(3x+1)+5x]/(8x9) = (8x+1)/(8x9)
(f/g)(x) = (3x+1)/(8x9) * (8x9)/5x = (3x+1)/5x
domain is all reals except where the denominator is zero.
visit wolframalpha.com and type
plot <function>
to see a graph of <function>
That should help you get a handle on the range
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