It is always so much easier to tell the domain and range of a function from its graph. In this lesson, we will learn how to graph out a radical function by using a table of value and transformations.
Radical functions: a function which contains a variable inside a root.
For example: y=√x , y=3√x−5 y=24√3x−8+11
Basic Radical Function: y=√x
For each radical function,
i) Describe the transformation(s) that should be applied to the graph of y=√x in order to obtain the graph of the given radical function.
ii) Write the "Coordinate Mapping Formula", then sketch the graph.
iii) State the domain and range.
Radical functions and transformations
Don't just watch, practice makes perfect.
We have 3417 practice questions in Algebra 1 for you to work through.