CAPE Pure Mathematics Unit 1 · 2008 (T&T) · Paper 1 · Question Q8
Which of the following sets of ordered pairs represent functions?\nI. \{(-1, 1), (0, 2), (1, 3), (4, 6)\}\nII. \{(-2, 4), (1, 1), (1, 4), (2, 4)\}\nIII. \{(-1, 1), (0, 0), (1, 1), (-3, 9)\}\nIV. \{(-2, 5), (-1, 5), (0, 5), (1, 5)\}
- (A)I and II only
- (B)II and III only
- (C)I, II and III only
- (D)I, III and IV only
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