How To Determine Domain And Range Of A Function
The function equation may be quadratic a fraction or contain roots.
How to determine domain and range of a function. Make a table of values on your graphing calculator see. How to make a table of values on the ti89. They will give you a function and ask you to find the domain and maybe the range too. Find the domain and range of a function with a table of values.
From the above graph you can see that the range for x 2 green and 4x 2 25 red graph is positive. You can take a good guess at this point that it is the set of all positive real numbers based on looking at the graph. To calculate the domain of the function you must first evaluate the terms within the equation. Determine the type of function you re working with.
I have only ever seen or can even think of two things at this stage in your mathematical career that you ll have to check in order to determine the domain of the function they ll give you and those two things are denominators and square roots.