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Mathematics 7 Online
OpenStudy (anonymous):

the point (12,9) is included in a direct variation. What is the constant of variation?

OpenStudy (anonymous):

1/2 3/4 1 2

OpenStudy (anonymous):

the formula for direct variation is y=kx. The k is the constant. If you put the x and y values from the ordered pair and solve for k, you'll have the constant. 9=12k Divide both sides by 12 9/12=k simplify k=3/4

OpenStudy (anonymous):

@cutiecucu therefore constant is /4

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