9
Answer: ASet 2: Linear Inequalities
Explanation
Solve:
A.
✓ Correct
B.
C.
or
D.
Detailed Explanation
Choice A is correct. Choice A is the correct answer. Absolute value inequalities with become compound "and" inequalities. 1. Setup: 2. Add 3: 3. Simplify: Strategic Tip: becomes . Think "Less thAND" (Less than = And). Choice B is incorrect because it ignores the lower bound. Choice C is incorrect because it models ("GreatOR" = Or). Choice D is incorrect because it solves incorrectly.
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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