Linear Inequalities in Two Variables
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Questions and Answers

Which of the following represents a linear inequality in two variables?

  • $3x - 2y = 8$
  • $2x + 3y \< 7$
  • $4x - 5y \geq 12$ (correct)
  • $x^2 + y^2 = 9$
  • What is the solution set for the inequality $-2x + 5y > 10$?

  • $(x, y) | x \leq -2, y \leq 3$
  • $(x, y) | x \geq -2, y > 3$
  • $(x, y) | x \geq -2, y \geq 3$ (correct)
  • $(x, y) | x > -2, y < 3$
  • Which of the following inequalities represents a line with a shaded region below it on the coordinate plane?

  • $3x + 2y > 10$
  • $2x - 3y \leq 6$ (correct)
  • $-2x + 3y < 9$
  • $4x + 5y = 20$
  • For the inequality $3x - 4y \geq 12$, which quadrant(s) would contain the solution set?

    <p>Quadrants I and IV</p> Signup and view all the answers

    What is a linear inequality in two variables?

    <p>An inequality in the form of Ax + By &lt; C or Ax + By &gt; C, where A, B, and C are constants and x and y are variables.</p> Signup and view all the answers

    How is the solution set for a linear inequality in two variables represented on the coordinate plane?

    <p>The solution set is represented by shading the region of the plane that satisfies the inequality.</p> Signup and view all the answers

    What does it mean for a point to be in the solution set of a linear inequality in two variables?

    <p>If a point satisfies the inequality when its coordinates are substituted into the inequality, then it is in the solution set.</p> Signup and view all the answers

    What are the possible orientations of the boundary line in a linear inequality in two variables?

    <p>The boundary line can be horizontal, vertical, or slanted, depending on the coefficients of x and y in the inequality.</p> Signup and view all the answers

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