Find the variation constant and an equation of variation where y varies directly as x and y=48, when x=6
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"y varies directly as x" means y = kx for some number k called the variation constant.
If y = 48 when x = 6, then 48 = k*6, which implies k = 8. Therefore, the variation constant is 6, and the equation of variation is y = 8x.
If y = 48 when x = 6, then 48 = k*6, which implies k = 8. Therefore, the variation constant is 6, and the equation of variation is y = 8x.