Question

can someone please explain radical functions to me and maybe give an example?

Answer 1

This means that to prevent a negative number from appearing under the square root sign, we have to pick x values that are less than or equal to 4. When graphing radical functions, it is important to graph points that are far apart from one another. Hope that helps. I will give you an example too, hold on.

Answer 2

http://www.wyzant.com/resources/lessons/math/precalculus/radical_functions

Answer 3

Here is example. http://www.mathplanet.com/media/31764/graph16.png

Answer 4

thank you both