How do you find the domain of f(x)=(4+x)/(1-4x)?

1 Answer
Jim G.
Aug 18, 2017

x inRR,x!=1/4

Explanation:

The denominator of f(x) cannot be zero as this would make f(x) undefined. Equating the denominator to zero and solving gives the value that x cannot be.

"solve "1-4x=0rArrx=1/4larrcolor(red)" excluded value"

"domain is "x inRR,x!=1/4

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