8
algebra

Which inequality represents the region strictly between x=−1x = -1 and x=4x = 4?

A

−1<x<4-1 < x < 4

B

−1≤x≤4-1 \leq x \leq 4

C

x<−1x < -1 or x>4x > 4

D

y<−1y < -1 or y>4y > 4

Correct Answer: A

Choice A is the correct answer. Vertical band between two x-values.

  1. Strictly between: Excludes boundaries →<,>\rightarrow <, >
  2. Inequality: −1<x<4-1 < x < 4

?�� Strategic Tip: Vertical lines involve xx, horizontal lines involve yy.

Choice B is incorrect because it includes boundaries. Choice C is incorrect because it represents the outside regions. Choice D is incorrect because it uses yy instead of xx.

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Linear Functions Set 73