Chapter 2 equations and inequalities answers
Rating:
6,2/10
1058
reviews

The other inequality has no solution nor a graph. If k is 0, then we observe that the absolute value of an expression is 0 if and only if the expression is 0. Finally you should write a description of the solutions set. Vocabulary and Readiness Check: 1 - 12 For each inequality that you solve in the following list you should write the solution set in both interval notation and set builder notation. You should also graph the inequality. The alternate or supplemental discussion presented on these other pages should be helpful.

Vocabulary and Readiness Check: 1 - 12 Section 2. Some of these questions are included in the MyMathLab homework requirement. The following are links to other web pages which are related to the topics in this section. In each case you are expected to make an honest adult evaluation of your understanding of the concept. Minimal List of Exercises Page 72.

Each of these questions should be answered. The Law of Trichotomy informs us that each real number is a solution to only one of the three. Case 2: The expression inside the absolute value symbol is negative. The following two properties of equations and three properties of inequalities are also important tools when solving equations involving absolute value. Vocabulary and Readiness Check Page 104: 1 - 5 Section 2.

How do exercises 103, 104, and 105 relate to the Law of Trichotomy? Therefore in the remaining discussion we will assume that the constant k on the right is positive. Each of these questions should be answered. Minimal List of Exercises Page 92. If a particular concept is difficult for you, you should study the related text material and then try to answer some additional questions from the list provided by the department. Therefore the intersection of any two of the solution sets is the empty set. When solving ax + b 0 cry out for attention. The Law of Trichotomy informs us that the constant k on the right side is negative, zero, or positive.

The only remaining case is when k is positive. Some of these questions are included in the MyMathLab homework requirement. Therefore the union of the three solution sets is R. If a particular concept is difficult for you, you should study the related text material and then try to answer some additional questions from the list provided by the department. In Section 4 of this chapter the topic of linear inequalities in one variable are discussed. Each of the individually listed exercises should be completed. In each case you are expected to make an honest adult evaluation of your understanding of the concept.

Percent Each percent problem is solved by referring to a basic formula that relates percentage, percent, and base. Vocabulary and Readiness Check Page 98: 1 - 5 Section 2. Clearly these three statements resemble the Law of Trichotomy. Minimal List of Exercises Page 98. If a particular concept is difficult for you, you should study the related text material and then try to answer some additional questions from the list provided by the department.

Your ability to answer these questions is one tool to help you make that evaluation. Test any point in either inequality to determine which inequality has solutions. These properties are the first things that should come to mind when you encounter an equation or inequality in any context. Each of these equations or inequalities can be solved by directly using the two cases that arise from the definition of absolute value together with the two properties for generating equivalent equations and the three properties for generating equivalent inequalities. Therefore when all three are graphed on the same number line, none of the graphs overlap.

Your ability to answer these questions is one tool to help you make that evaluation. Some of these questions are included in the MyMathLab homework requirement. If you understand the previous material you should be able to answer the following questions. Therefore when all three are graphed on the same number line, the entire number line is used. If a particular concept is difficult for you, you should study the related text material and then try to answer some additional questions from the list provided by the department. Your ability to answer these questions is one tool to help you make that evaluation.

Each of these questions should be answered. If you understand the previous material you should be able to answer the following questions. Every equation or inequality involving absolute value is solved by considering the two cases as in this general example: Generic Example: To solve an equation or inequality involving something , two cases must be considered. Your ability to answer these questions is one tool to help you make that evaluation. Procedure: To solve an equation or an inequality involving absolute values of variable expressions, it is necessary to consider the two equations which naturally result from the definition of absolute value.