9
algebra

Which system has solutions in Quadrant II only?

A

x<0,y>0,y<x+10x < 0, y > 0, y < x + 10

B

x>0,y>0x > 0, y > 0

C

x<0,y<0x < 0, y < 0

D

x>0,y<0x > 0, y < 0

Correct Answer: A

Choice A is the correct answer. Analyze constraints.

  1. x<0,y>0x < 0, y > 0: This defines Quadrant II.
  2. y<x+10y < x + 10: This cuts off a portion, but the solution remains strictly within QII because of the first two constraints.

?�� Strategic Tip: Quadrant II is Top-Left (xx neg, yy pos).

Choice B is incorrect because it is Q1. Choice C is incorrect because it is Q3. Choice D is incorrect because it is Q4.

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Linear Functions Set 80