Which of the following functions has a domain restricted to x≥3x \geq 3x≥3?
f(x)=x2−3f(x) = x^2 - 3f(x)=x2−3
f(x)=x−3f(x) = \sqrt{x - 3}f(x)=x−3
f(x)=1x−3f(x) = \frac{1}{x - 3}f(x)=x−31
f(x)=∣x−3∣f(x) = |x - 3|f(x)=∣x−3∣