3
Answer: ASet 12: Linear Inequalities (Intermediate)
Explanation
Solve: and
A.
✓ Correct
B.
C.
D.
Detailed Explanation
Choice A is correct. Choice A is the correct answer. Solve independently. 1. First: 2. Second: 3. Combine: AND Strategic Tip: Pay attention to strict () vs inclusive () endpoints. Choice B is incorrect because it makes -2 inclusive. Choice C is incorrect because it misses the lower bound. Choice D is incorrect because it misses the upper bound.
Key Steps:
•
The correct answer is
Why others are wrong:
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.
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