Question

What is the domain of the letter g?

Answer 1

Answer:

B

Step-by-step explanation:

recall that any radical expression $\sqrt{A}$ has real solutions only if A is not negative. (otherwise you will have imaginary solutions)

hence in this case we have

$\sqrt{8x}$,

for real solutions, 8x must be ≥ 0,

since 8 is a positive number, x must be ≥ 0 (answer)