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