Module 2: Radical Functions

 

Radical functions are used in different applications. Following is an example of how radical functions are used in physics.

 

Try This 5

 

After an accident, police determine the speed at which the car had been moving by applying a simple radical formula, The formula can be used to approximate the speed, v, in miles per hour, of a car that has left a skid mark of length, L, in feet.

  1. Describe the transformations required to produce the function from the function
  2. Graph the function
  3. State the domain and range. What do these values mean in the context of this question?
  4. Use the graph to determine how far a car will skid at 65 mph and at 100 mph.
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textbook

If you would like to see another example of an application of a radical function, read through “Example 4” on pages 70 and 71 of the textbook.



Self-Check 5

 

Complete “Your Turn” on page 71 of the textbook. Answers

For a summary of graphing radical functions, you may choose to watch the video titled “Graphs of Square Root Functions.” If you feel comfortable graphing radical functions, you might prefer to skip the video.

 

 
This is a play button for “Graphs of Square Root Functions.”
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glossary
Add radical function to your copy of Glossary Terms.


formula

Add the following formula to your copy of Formula Sheet: