Question 945517

{{{f(x) = (x + 3)^2/(sqrt(7x- 1))}}} the domain will be all values of {{{x}}} except the values that make denominator equal to zero and that will be {{{(7x- 1)=0}}}=>{{{7x=1}}}=>{{{x=1/7}}}

domain:
{ {{{x}}} element {{{R}}} : {{{x>1/7}}} }
(assuming a function from reals to reals)

interval:

({{{1/7}}},{{{infinity}}})