Set 10: Linear Inequalities (Advanced)
Explanation
If , which number line best represents the solution?
Closed circle at -3, arrow pointing right
Closed circle at -3, arrow pointing left
Closed circle at 3, arrow pointing right
Closed circle at 3, arrow pointing left
Detailed Explanation
Choice A is correct. Choice A is the correct answer. Graphing requires solving first, then correctly placing the circle and arrow. 1. Subtract 5: 2. Divide by -4: (REVERSE the sign!) 3. Graph: Closed circle at -3 (includes -3), arrow right (greater than) Strategic Tip: After dividing by a negative, double-check that you reversed the inequality before graphing. Choice B is incorrect because while the closed circle at -3 is correct, the arrow points left (representing ), wrong direction. Choice C is incorrect because the boundary should be -3, not positive 3. Choice D is incorrect because it has both the wrong sign on the boundary and the wrong arrow direction.
Key Steps:
The correct answer is Closed circle at -3, arrow pointing right
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