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If y varies directly as x, and y is 6 when x is 72, what is the value of y when x is 8?119OCON54O 96

If y varies directly as x, and y is 6 when x is 72, what is the value of y when x-example-1

1 Answer

2 votes

Given

y varies directly as x , and y = 6 when x = 72

Find

value of y when x is 8

Step-by-step explanation

The direct relation is given by


y\propto x

to remove proportionality sign , we use constant of proportionality , k


y=kx

given


\begin{gathered} 6=k(72) \\ k=(1)/(12) \end{gathered}

so ,


y=(1)/(12)*8=(2)/(3)

Final Answer

Therefore , the correct option is b.

User Khael
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