the domain and range of the function f(x) = √x - 2 is

a.  all real number excluding 2 and all positive numbers

b.  all real numbers and all positive numbers

c.  all real numbers smaller than or equal to 2 and all positive numbers

d.  all real number greater than or equal to 2 and all positive numbers
in Other Math Topics by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

If f(x)=√(x-2) the domain is governed by the fact that x-2≥0 so x≥2.

Assuming the positive square root, f(x)≥0.

So the domain is x≥2 and the range is f(x)≥0, answer option d.

by Top Rated User (600k points)

Related questions

Welcome to, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
81,977 questions
86,376 answers
72,105 users