What S The Domain Of Y X 2
Why the boundary of a two variable function s domain like f x y frac y x 2 is x 0 and for f x y x y there s no boundary.
What s the domain of y x 2. In this case there is no real number that makes the expression undefined. 2 2 start by solving the equation 4 x 2 0 then 2 x 2 x 0 x 2 now select a test point let it be x 0. Free functions domain calculator find functions domain step by step this website uses cookies to ensure you get the best experience.
Use the graph. Let s assume you had the graph of a parabola y x 2. The domain of the expression is all real numbers except where the expression is undefined.
2 y 2 2 x so y log 2 2 x here log has base 2 we know that log is defined when 2 2 x 0 so 2 2 x so x infinity 1. Then y sqrt 4 0 2 2 so the function is defined on 2 2. The range on the other hand is different.
Free math problem solver answers your algebra geometry trigonometry calculus and statistics homework questions with step by step explanations just like a math tutor. Thus the domain is all real numbers or from infinity to infinity. Range of values that can be substituted for x in a function in this case x needs to have an existing square to be part of the domain of the function y x 2 any number can be squared including positive and negative numbers and pi.
The range is the set of all valid values. Use the graph. Free math problem solver answers your algebra geometry trigonometry calculus and statistics homework questions with step by step explanations just like a math tutor.
According to the definition a point in a region r is a boundary point if it is the center of every disk that contains points that lie outside of r as well as. We know that any. By using this website you agree to our cookie policy.