4
Answer: ASet 10: 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 and find the intersection. 1. First: 2. Second: (Reverse sign!) 3. Combine: AND Strategic Tip: Don't forget to reverse the sign when dividing by -3. Choice B is incorrect because it might result from dividing 12 by 2 instead of 3. Choice C is incorrect because it ignores the second constraint. Choice D is incorrect because it ignores the first constraint.
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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