Welcome to the main web page for Chapter TWO of PRECALCULUS: College Algebra and Trigonometry. Use this page to move to the desired pointers within the chapter.

The chapter is divided into the following sections:
2.0  Solving Linear and Quadratic Equations
2.1  Linear Functions
2.2  Parallel, Perpendicular, and Intersecting Lines
2.3  Linear Regression
2.4  Quadratic Functions
2.5  Parametric Equations

In the textbook there are icons directing you to various support pages. The icon is used to reference pages that demonstrate aspects of using the TI graphing calculators. The icon is used to reference extra material on a topic. And the icon is used to reference further explanations of some point in the text. Below each icon in the text there is a sequenced name for the specific web page being referenced. Those icons and sequenced names are listed below as hyperlinks to the desired pages.

calculator pages	additional material pages	further explanations pages
208601 Page 98 This is a page that explains the use of Solver on the TI-86. 209202 Page 98 This is a page that explains the use of the "solve" command for symbolic algebra on the TI-92 (TI-89). 208302 208602 Page 98 This is a page that uses the TI-83 or TI-86 (TI-85) to check the work for Example 4. 208303 208603 Page 100 Presents trinomial factoring, version 1: "trifact1" for TI-83 or TI-86(85). 208304 208604 Page 100 Presents trinomial factoring, version 2: "trifact2" for TI-83 or TI-86(85). 208605 Page 100 This is a page that explains the use of the TI-86 (85) "poly" command for solving polynomials. 208306 208606 Page 102 This is a page that presents the QUAD program on the TI-83 or TI-86(85). 208307 208607 Page 102 This is a page that presents the QUAD1 program on the TI-83 or TI-86(85). 208308 208308 Page 102 This is a page that presents the QUAD2 program on the TI-83 or TI-86(85).	20mt01 Page 97 This is a page that give additional material for Chapter 2, Section 0.

calculator pages	additional material pages	further explanations pages
218301 218601 218901 Page 113 These are pages that present the various forms of the SLOPE program for the different calculators. 218602 Page 115 This page presents shading on the TI-86.	21mt01 Page 112 This is a page demonstrates an alternate method of solving point-slope problems.

calculator pages	additional material pages	further explanations pages
	22mt01 Page 127 This is a page demonstrates uses of the STANDARD FORM for linear equations.	22ex01 Page 127 This is a page related to the appearance of "perpendicularity" on the calculators.

calculator pages	additional material pages	further explanations pages
238301 238601 238901 Page 138 Traces the construction of the problem in the book. 238602 Page 138 A detailed example of doing a Linear Regression, other than the example in the book. 238902 Page 138 A detailed example of doing a Linear Regression on the TI-89 using special features of the TI-89.	23mt01 Page 137 General discussion of Linear Regression. 23mt02 Page 141 Further investigation of Example 3.

calculator pages	additional material pages	further explanations pages
248301 248601 248901 Page 156 This is a student generated program for finding the component characteristics of a quadratic equation. 248303 248603 248903 Page 159 Demonstration of the steps needed to find the points of intersection between a line and a parabola.

calculator pages	additional material pages	further explanations pages
258601 Page 171 Shifting the calculator into the "Parametric" Mode and then graphing two parametric equations. 258302 258602 Page 174 Graphing another parametric equation.	25mt01 Page 169 More text and images to present the parametric equations, the table, and the graph of the points. 25mt02 Page 171 Even more text and images to present the parametric equations, the table, and the graph of the points.