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Mathematics 20 Online
OpenStudy (clover7922):

Find an equation for y in terms of x if y is directly proportional to y. X = 4 Y = 8

OpenStudy (mathmale):

This situation, called "direct proportion," is characterized by the equation y=kx. Here you are told that x=4 and y=8. Use this info and the above equation to determine the value of k.

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