How do you find the domain of #p(t)=(t+9)/(t+3)#?
Aug 22, 2017
The denominator of p(t) cannot be zero as this would make p(t) undefined. Equating the denominator to zero and solving gives the value that t cannot be.
#"solve "t+3=0rArrt=-3larrcolor(red)" excluded value"#
#"domain is "t inRR,t!=-3#