Question

what is the domain for the function y+square root of x-10

Answer 1

When \(x-10 \) in \(y+\sqrt {x - 10}\) become negative, the function is no longer real. When is the function greater than or equal to zero: \( x-10\ge0\).

Isolate the \(x\) and that will be the domain for \( x\): \(x\ge10\)