How do you find the domain of f(x)=5/(3x+4)?

1 Answer
Jim G.
Apr 21, 2017

x inRR,x!=-4/3

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 " 3x+4=0rArrx=-4/3larrcolor(red)" excluded value"

rArr"domain is " x inRR,x!=-4/3

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