Determine interval

Question

Determine the interval on which f(x) = √ x-3 is integrable.

[-∞, 3)

[0, ∞)

[3, ∞)

All reals

Answer 1

IF the radicand ix (x-3), then the function is defined on [3,infinity)

 

Unfortunately you did not include parentheses to indicate the 'scope' of the square rooting.