If x varies over the set of real numbers which ... - WAEC Mathematics 1997 Question
If x varies over the set of real numbers, which of the following is illustrated in the diagram above?
A
-2 ≤ x < 3
B
-2 < x ≤ 3
C
-2 < x < 3
D
-2 ≤ x ≤ 3
correct option: b
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