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Assignment

Section 1-3


Chapter 5 quiz

 


Unit 5 Systems of Equations and Inequalities

Graphing Calculator Skills needed for this chapter.


Section 5.3 Multivariable Linear Systems

Highlights and Objectives

You will be able to:

Use the method of elimination to solve systems of three or more variables for echelon form and non- echelon form
Experiment now online with his embedded LiveMath Notebook.
Change the coefficients and constants in the first three equations and see the solutions update onscreen.
No support for LM Objects
Solve systems with Inconsistent Solutions


Section 5.4 Partial Fractions  


Section 5.5 Systems of Inequalities.

Highlights and Objectives    The graphics calculator can help with systems of inequalities,though for some it is easier to graph by hand. The TI 83 has a built-in shading feature in the  y = editor. Page 434 includes a section on using this feature. For functions that are solved for y such as y > x2 - 3x + 4   or    y < ln x ,   greater than shades all the points above the curve and less than shades all the points below the curve. With non functions such as vertical lines, and  circles, (and other conics referred to in Chapter 8), the rules are more complicated. However, they can all be checked by test points.

Example of graphing inequalities
intersection to functions grf
y > x2 - 4

y > x + 3

Graph from TI 83

 Section 5.6 Linear Programming   OPTIONAL



Review Exercises and Chapter Test

At the end of this chapter and every chapter are the review exercises and the chapter test. These are done for you on the CD and also in the solutions manual. As with all the exercises in this course, try to do them on your own first before looking at the given answers and solutions, and remember to post question on the bulletin board and also to email the instructor if you are having difficulty. Do not start the next chapter until you have mastered the material n this chapter.

   


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