Precalculus A Fuctional Approach to Graphing and Problem Solving
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Section 4.2: Radical Functions

Problems 1-4
Examples vary; you might want to look at the director of curves.

Problems 5-8
The problems called WHAT IS WRONG? , if anything, are really enhanced true/false questions. That is, simply saying "true" or "false" is not sufficient -- you need to provide reasoning as well.

Problems 9-16
Look to Example 1 for general concepts and Example 2 for details.

Problems 17-20
Look to Example 1 for general concepts and Example 2 for details. As you compare each part, you should check out Examples 3 and 4.

Problems 21-28
Remember that a fractional exponent is a radical. Look to Example 1 for general concepts and Example 2 for details.

Problems 29-34
These examples are extensions of what you did in Problems 21-28. In other words, these are translations of simpler curves.

Problems 35-40
See Example 4.

Problems 41-48
See Example 3.

Problems 49-56
Before you work these problems, take some time going through the details of Example 5.

Problem 57
Since A = xy, you know y = A/x. Use this for parts a and b.

Note: Homework Hints are given only for Level 1 and Level 2 problems. Hints are generally not given for IN YOUR OWN WORDS or Journal Problems. You can also check some sources for homework help on the Links page of this web site. Don't be afraid to ask your instructor or classmates for help. You can also send an e-mail to: smithkjs@mathnature.com.
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