Assessment items Item 13 The variables x and y vary directly. Use the values to find the constant of proportionality, k. Then write an equation that relates x and y. y=72; x=3 k = y=

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2 October, 00:57

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Riley Roberts · Answer 1

A proportion can be written as

y = kx

Substituting the given information, we can find k.

72 = k*3

72/3 = k = 24

You have ...

k = 24

y = 24x

Marcus · Answer 2

To find the constant of proportionality you gotta divide the x by the y to get your answer