The domain of f(x)=1/x is (−∞,0)∪(0,∞)(-∞,0)∪(0,∞). What is the domain of g(x)=4/x+3−7g(x)=4x+3-7?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.1: Polynomial Functions Of Degree Greater Than
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The domain of f(x)=1/x is (−∞,0)∪(0,∞)(-∞,0)∪(0,∞). What is the domain of g(x)=4/x+3−7g(x)=4x+3-7?

Expert Solution
Step 1

Given the domain of f(x) = 1/x is

(-∞ , 0) U(0 ,∞).

We need to find domain of 

g(x) = 4/x+3 -7

Now,

f(x) = 1/x 

So, f(x) is not defined at x= 0, therefore x=0 is not in domain of f(x).

 

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