math

posted by darian

Which table shows a proportional relationship between x and y?

x 2 4 5 6
y 6 12 18 21
x 1 3 4 5
y 50 150 200 250
x 3 5 7 8
y 1.5 2.5 3 4.5
x 1 2 3 6
y 1.5 3 6 9

  1. Steve

    there must be a constant ratio. So, check each pair of terms to be sure it stays constant

    x 2 4 5 6
    y 6 12 18 21
    6/2 = 3
    12/4 = 3
    18/5 = 3.6
    21/6 = 3.5
    So, that's not a proportional relationship

    Check the other tables.

  2. PsyDAG

    You don't have your tables labeled, so I just copied the right one.

    x 1 3 4 5
    y 50 150 200 250

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