psyfare psyfare

12-08-2016
Mathematics

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Find an equation of variation where y varies directly as x and y = 8 when x = 2, find y when x = 10.

y=???

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Ckaranja Ckaranja

16-08-2016

y[tex] \alpha x[/tex]
y=mx
Where m is a constant of variation;
y=8, x=2
8=2m
m=8/2
m=4
y=4x
When x=10
y=4(10)
y=40

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