Question

What is the domain and range of `f(x) = sqrt(2x-8)`?

Answer 1

Domain: `[4, oo)` , Range: `[0, oo)`

Explanation:

`f(x) = sqrty(2x-8)` Domain: `2x-8 >=0 or x >= 4 ; [4, oo)`

Range: `f(x) >= 0 ; [0, oo)` graph{(2x-8)^0.5 [-10, 10, -5, 5]} [Ans]