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Example: Solving and Graphing
To solve the inequality , first simplify each side by distributing to get , which condenses to . Next, collect the variables on the left side by subtracting from both sides to obtain . Add to both sides to collect the constants on the right, yielding . Divide both sides by . Since is notably positive, the inequality symbol remains exactly the same, culminating in . Graph the solution on the number line with a left parenthesis at and shading stretching to the right. In interval notation, the solution is written securely as .
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Intermediate Algebra @ OpenStax
Ch.2 Solving Linear Equations - Intermediate Algebra @ OpenStax
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Example: Solving and Graphing
Example: Solving and Graphing
Example: Solving and Graphing
Example: Solving and Graphing
Example: Solving and Graphing
Readiness Quiz: Solving
Solving the Linear Inequality
A logistics coordinator is using the inequality to determine the maximum number of additional crates, , that can be added to a shipment without exceeding a weight limit. To isolate in the final step of the solution, the coordinator must divide both sides by -2. Which rule must be recalled when performing this operation?
A production manager is solving a multi-step linear inequality to determine the minimum number of units a factory must produce to stay within a specific budget. Arrange the following steps in the standard order typically used to solve a multi-step linear inequality for a variable, such as .
A procurement officer is solving the inequality to stay within a quarterly budget for office supplies, where represents the number of units ordered. After simplifying the inequality to , the officer must divide both sides by to solve for . True or False: In this final step, the inequality sign must be reversed to to maintain the correct solution.
Simplifying Multi-Step Inequalities
A business operations manager is solving a multi-step linear inequality to determine the maximum number of safety inspections that can be performed within a fixed quarterly budget. Match each algebraic property or rule to the correct description of its role in the solution process.
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An inventory specialist is solving the inequality to determine the minimum number of units () to order. After performing the algebraic steps, the specialist finds that . Which of the following correctly expresses this solution in interval notation?
A facility manager is calculating the minimum number of maintenance personnel () required for a weekend shift using the inequality . Arrange the following steps in the correct order to solve the inequality and represent the solution.
An inventory supervisor is verifying the audit trail for a resource allocation calculation based on the inequality . To ensure the final report is accurate, match each description of the algebraic stage with the correct mathematical expression produced during that specific step.
A resource manager is calculating a minimum production quota () using the inequality . After simplifying the expression to the step , the manager prepares to divide both sides by 4 to isolate . True or False: In this specific step, the inequality symbol () must be reversed because a division operation is being performed.
Identifying Intermediate Steps in Linear Inequalities