Question

What is this? Please answer with an explanation

Answer 1

No

Explanation:

Given

f(x) =
`√(x-10)` + 11 ← substitute x = 1

f(1) =
`√(1-10)` + 11

=
`√(-9)` + 11

`√(-9)` is not real and therefore x = 1 does not have a real output for f(x)