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16 September, 10:12

Which equation does NOT represent a function?

A) x=y^2-9

B) y=3x^2-5

C) y=12

D) 3x+4y=6

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Answers (1)
  1. 16 September, 10:40
    0
    The answer is A, use the vertical line test: if there is a vertical line that passes through the graph more than once it is not a function
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