Question

Find the domain of the function: g(x)=√7-x

Answer 1

\[\sqrt{7 - x }\ge 0\]Does that make sense?

Answer 2

actually..the solution should be \[7 - x \ge 0\]
no square root symbols

Answer 3

That'd be the same thing, because you get @lgbasallote's equation after squaring both sides.

Answer 4

algebraically they're equivalent..logically no

Answer 5

Thanks! So it is greater than or equal to because you can't take the square root of a negative, right?