Which relation is a function {(-4,-4), (2, -4), (7,3), (7, -1)}

Question

Which relation is a function
{(-4,-4), (2, -4), (7,3), (7, -1)}

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Huyền Thanh 5 years 2021-07-31T12:40:17+00:00 1 Answers 15 views 0

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  1. Dau
    0
    2021-07-31T12:41:25+00:00
    Reply

    This is non-function because range cannot have same number twice, like this has 7 written twice so its non-function

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )