Radical functions are graphable equations that contain a variable (typically denoted as x) underneath a radical sign (√). Many people mistakenly call this symbol a "square root sign," but in truth it can be used for any root if a subscript number is present on the outside. If you or your child need a little help graphing radical functions, Varsity Tutors can refer you to a radical functions tutor to help you reach your economic goals.
Here are some of the concepts that may be reviewed during radical functions tutoring sessions:
- Relevant Vocabulary (Subscript, Radicand, Root, Radical)
- Simplifying Radical Functions (to make them easier to graph)
- Clues in an Expression to Determine What a Graph Looks Like
- Practice Problems
Many radical function tutoring sessions begin by making sure that a student knows the terminology involved. Let's look at y=√x as an example. This expression is saying that value y needs to be multiplied by itself twice to equal the value of the "radicand" inside the radical symbol, x. If we change the equation to y=3√x, the new subscript number (three) means that value y must be multiplied by itself three times in order to be equivalent to x.
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