Domain And Range Help
The example below shows two different ways that a function can be represented.
Domain and range help. If you are still confused you might consider posting your question on our message board or reading another website s lesson on domain and range to get another point of view. The domain of a function is the set of all x values that have a y value associated with them. To find the range of a function first find the x value and y value of the vertex using the formula x b 2a.
As a function table and as a set of coordinates. Functions have a domain and range and can be found in two ways. The domain of a function is all the possible input values for which the function is defined and the range is all possible output values.
If the function is graphed the domain and range can be identified from the picture or the domain and range can be found algebraically with some reasoning. The range of a function is all the possible values of the dependent variable y.