The domain of the function 1/2x is {0, 2, 4}. What is the range of the function?
The domain is a subset of the values for which the function is defined. The range is the set of values that the function takes as the argument of the function takes all the values in the domain.
The range of a function is the set of all of the possible values that it can take on as an output value. You find the range by inspecting the function and seeing first what the domain is, and then what the range would be for that domain. The domain, then, is the set of all of the possible values that it can take on as an input value.
Use the function to find the image of each point in the domain. The set of values that you get will be the range. If the function is well behaved, you will not have to try each and every value in the domain.
Find the range of a function by substituting the highest domain possible and the lowest domain possible into the function. There, you will find the highest and lowest range. Then, you should check all the possible cases in the function where a number could be divided by 0 or a negative number could be square rooted. Remove these numbers from the range. A good way to check to see if you have the correct range is to graph the function (within the domain, of course).
You need to know the domain in order to find the range.
Any function is a mapping from a domain to a codomain or range. Each element of the domain is mapped on to a unique element in the range by the function.
The domain and range are two different sets associated with a relationship or function. There is not a domain of a range.
The domain of a function is the set of values for which the function is defined.The range is the set of possible results which you can get for the function.
A number does not have a range and domain, a function does.
Domain is a set in which the given function is valid and range is the set of all the values the function takes
The domain and range of the composite function depend on both of the functions that make it up.