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April 18, 2015

April 18, 2015

Posted by **Gloria** on Sunday, October 16, 2011 at 11:09pm.

Let f(x)=(7x+1)/(3x+2) and g(x)=6x+5.

- College Algebra -
**Steve**, Monday, October 17, 2011 at 1:34pmexcluded values for the domain of f: when 3x+2 = 0

Otherwise the domain of f and g is all reals.

f+/-g = (x+1)/(3x+2) +/- (6x+5), so same domain as f.

fg = (7x+1)(6x+5)/(3x+2), so the domain is the same as that of f

(f+g)(-5) = f(-5)+g(-5) = -34/-13 - 25

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