# Homework Hints 7-1

### Note: Homework Hints are given only for the Level 1 and Level 2 problems.

However, as you go through the book be sure you look at all the examples in the text. If you need hints for the Level 3 problems, check some sources for help on the internet (see the LINKS for that particular section. As a last resort, you can call the author at (707) 829-0606.

On the other hand, the problems designated “Problem Solving” generally require techniques that do not have textbook examples.

There are many sources for homework help on the internet.

Algebra.help
Here is a site where technology meets mathematics. You can search a particular topic or choose lessons, calculators, worksheets for extra practice or other resources.
http://www.algebrahelp.com/

Dr. Math is a registered trademark. This is an excellent site at which you can search to see if your question has been previously asked, or you can send your question directly to Dr. Math to receive an answer.
http://mathforum.org/dr.math/

Quick Math
This site provides online graphing calculators. This is especially useful if you do not have your own calculator.
http://www.quickmath.com/

The Math Forum @ Drexel
This site provides an internet mathematics library that can help if you need extra help. For additional homework help at this site, click one of the links in the right-hand column.
http://mathforum.org/

Problems 1-8
There are many problems throughout the text labeled IN YOUR OWN WORDS. Just relax; do not be afraid to give your opinion. For the most part, these questions do not have “right” or “wrong” answers. You should spend about five minutes in answering each of these questions.
Problems 9-10
These problems are checking if you understand the words translation, reflection, rotation, dilation, or a contraction.
Problems 11-19
The answers to Problems 11, 12 and 19 are line segments;
Problems 13 and 14 are lines;
Problems 15-18 are half-lines.
Problems 20-27
See Figure 7.10, and note the fold. For these problems, the question is, “Can you find a line (fold) so that the given illustration can be folded onto itself?”
Problems 28-31
See Figure 7.6; you will need to have a compass for these problems.
Problems 32-35
See Figure 7.7; you will need to have a compass for these problems.
Problems 36-39
See Figure 7.8; you will need to have a compass for these problems.
Problems 40-47
Figure 7.10 shows a line of symmetry. For these problems, see if you can find a line of symmetry.