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Which is the graph of the linear inequality 2x – 3y < 12?

A. y >2/3}x - 4
B. y < 2/3x - 4
C. y > 2/3}x + 4
D. y < 2/3x + 4

User Zneak
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1 Answer

3 votes

Final answer:

The correct graph for the linear inequality 2x - 3y < 12 is B. y < 2/3x - 4, which has a negative slope and the area below the line is shaded.

Step-by-step explanation:

To determine which graph represents the linear inequality 2x - 3y < 12, let us first convert the inequality into slope-intercept form (y = mx + b), where m is the slope and b is the y-intercept:

  • Start by moving the term with x to the other side of the inequality: -3y < -2x + 12.
  • Then, to isolate y, divide both sides of the inequality by -3, remembering to reverse the inequality sign because we're dividing by a negative number. This gives us y > 2/3x - 4.

The correct answer is B. y < 2/3x - 4 because reversing the inequality after dividing by -3 changes the symbol from '>' to '<'. The graph of this inequality will be a line with a slope of 2/3 and a y-intercept of -4, and the region below this line will be shaded to represent all the points (x, y) that satisfy the inequality.

User ProNeticas
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