Mathematics, 22.10.2020 22:01, fernandezvela27

How do you know whether two quantities x and y are proportional? 1. Every ratio yx for related pairs of x and y is equivalent.
2. Every sum x + y is the same for related pairs of x and y.
3. Every x term is a multiple of the previous term.
4. Every difference x – y is the same for related pairs of x and y please help me

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How do you know whether two quantities x and y are proportional? 1. Every ratio yx for related pair...