Here's the question you clicked on:
monroe17
g(x)=sqrt(x(x-15)) find the domainnnnnnn.... :/
I'm guessing what I said last didn't help much?
It usually helps for that one problem, then I try to do it myself and I get completely lost :/ Functions are my weakness...
If so, then we can graph x(x-15) to get this (see attached)
Notice how the red graph is above the x axis from -infinity to 0 then it dips below the x axis but it comes back up and goes above the x axis from 15 to infinity
so this means that the solution to x(x-15) >= 0 is (-inf, 0] U [15, inf)
yeah (-inf,0]U[15,inf) ?
where 'inf' stands for infinity
yes you nailed it