Introduction and Basic Graphs

© Dr. Laura J. Pyzdrowski

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**About this Laboratory**

In this laboratory, you will be introduced to a graphing utility. It is
important that you become efficient at entering expressions and collecting
information from tables and graphs using this
*Grapher*. In order to help you develop your mathematical reasoning
skills, the course will emphasize connections among numbers in tables, algebraic
analysis, and graphs. In this laboratory, you will learn how to graphically and
numerically find and/or approximate the coordinates of x-intercepts. It is
important to familiarize yourself with the techniques of adjusting the viewing
window. You will also explore
important functions with which you should become familiar. They are the most
basic functions used in algebra and will be used as building blocks for families
of functions. It is necessary that you know their domains and ranges. You should
be able to quickly recognize a graph and associate it with a function. You
should also be able to sketch a graph given the equation of a basic function.

**The" Do Later" exercises should be done after you have finished using the computer.** As
you progress, you will learn new technological techniques needed to complete future
laboratories. You should begin a reference folder containing your completed labs. Bring the
folder with you to the laboratory.

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