The problem
Click to see the original problem
What does the part x epsilon (-7, infinity) mean?
What does a two part check mean?
Answer provided by our tutors
is the interval notion of the solution.
(-7, ~) = {x | x > -7 }
It means that 'x' belongs to the set of the real numbers that are larger than -7, that is, {x | x > -7 }
If you want to graph the solution, you can select 'Graph' tab and solve:
Click here to see the solution under graph tab.