How Do You Find The Domain And Range Of A Polynomial Function

Find the domain and range of a function with a table of values.

How do you find the domain and range of a polynomial function. Virtual nerd s patent pending tutorial system provides in context information hints and links to supporting tutorials synchronized with videos each 3 to 7 minutes long. Make a table of values on your graphing calculator see. In algebra when we deal with points on a graph you may be asked to find its domain and range.

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. Then plug that answer into the function to find the range. The domain tells us all the possible values of x the independent variable that will output real y.

These unique features make virtual nerd a viable alternative to private tutoring. Let s learn what each of these mean. Recall that the domain of a function is the set of possible input values x values of the function.

That is the domain includes the intervals 1 and 1. The range is the set of all valid values. Find the domain and range y x.

Put any number into the sin function in your calculator. 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. In this non linear system users are free to take whatever path through the material best serves their needs.

The domain of y sin x is all values of x since there are no restrictions on the values for x. Any number should work and will give you a final answer between 1 and 1 from the calculator experiment and from observing the curve we can see the range is y betweeen 1 and 1. Since the limitation that x cannot be 1 remains after simplification we can plot the simplified function without worrying about neglecting holes in the graph.