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Linear Inequalities & Number Lines

by Anonymous

Solve linear inequalities step by step and mark the solution set on a number line (●/β—‹), seeing how dividing by a negative flips the inequality sign.

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About this app

An interactive middle-school math app for learning linear inequalities and representing solution sets on a number line. Explore how the boundary, direction, and endpoint inclusion change an inequality, then solve step-by-step by subtracting constants and dividing by the coefficient. A challenge mode asks you to identify the correct boundary, direction, and open or closed endpoint, with a correct-answer streak.

Use cases

  • Middle-school students practicing linear inequalities
  • Learners reviewing open and closed endpoints on number lines
  • Teachers demonstrating why division by a negative flips the inequality sign
  • Independent practice with step-by-step inequality solving

Features

  • Interactive number-line exploration with adjustable boundary, direction, and endpoint inclusion
  • Step-by-step exercises for subtracting constants and dividing by the coefficient
  • Examples with positive and negative coefficients
  • Challenge mode for matching solved inequalities to number-line solutions
  • Immediate answer feedback and consecutive-correct streak tracking