What is the constant of proportionality?

The constant of proportionality is the ratio between two directly proportional quantities.

Step-by-step explanation:

The constant of proportionality is the ratio between two directly proportional quantities.

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answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

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mrb