Intermediate Algebra

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Solution Set

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Intermediate Algebra

Definition

The solution set is the set of all values of the variable(s) that satisfy an equation, inequality, or system of equations or inequalities. It represents the collection of all possible solutions to a given mathematical problem.

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5 Must Know Facts For Your Next Test

  1. The solution set for a linear inequality represents all the values of the variable(s) that make the inequality true.
  2. Compound inequalities, such as those involving 'and' or 'or' operations, have solution sets that are the intersection or union of the individual solution sets.
  3. Absolute value inequalities can be solved by considering the cases where the expression is positive and negative, leading to a solution set.
  4. The solution set for a linear inequality in two variables is represented by a half-plane on the coordinate plane.
  5. The solution set for a system of equations or inequalities is the set of all values that satisfy all the equations or inequalities simultaneously.

Review Questions

  • Explain how the solution set of a linear inequality is determined and represented.
    • The solution set of a linear inequality is the set of all values of the variable(s) that make the inequality true. To determine the solution set, you need to isolate the variable and then consider the direction of the inequality sign (greater than, less than, or not equal to) to identify the range of values that satisfy the inequality. The solution set can be represented graphically as a half-plane on the coordinate plane, where the boundary line represents the points where the inequality is an equality.
  • Describe the process of finding the solution set for a system of equations or inequalities.
    • To find the solution set for a system of equations or inequalities, you need to solve the system by finding the values of the variables that satisfy all the equations or inequalities simultaneously. This can be done using various methods, such as substitution, elimination, or graphing. The solution set is the set of all values of the variables that make all the equations or inequalities in the system true. This solution set may be a single point, a line, a region, or an empty set, depending on the nature of the system.
  • Analyze the impact of the type of inequality (linear, compound, absolute value) on the characteristics of the solution set.
    • The type of inequality affects the characteristics of the solution set. For linear inequalities, the solution set is a half-plane. For compound inequalities involving 'and' or 'or' operations, the solution set is the intersection or union of the individual solution sets, respectively. Absolute value inequalities require considering the cases where the expression is positive and negative, leading to a solution set that may consist of two disjoint intervals. The solution set for a system of equations or inequalities is the set of all values that satisfy all the equations or inequalities simultaneously, which can be a single point, a line, a region, or an empty set.
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