If y varies directly as x, and y is 48 when x is 6, which expression can be used to find the value of y when x is 2?
If y varies directly as x, and y is 48 when x is 6, y = 8x can be used to find the value of y when x is 2. If y = kx 48 = 6k k = 48/6 k = 8 so y = 8x when x = 2 y = 16
Question
Updated 2/25/2015 1:57:56 AM
Rating
3
If y varies directly as x, and y is 48 when x is 6, y = 8x can be used to find the value of y when x is 2.
If y = kx
48 = 6k
k = 48/6
k = 8
so y = 8x
when x = 2
y = 16
Confirmed by jeifunk [2/25/2015 3:35:55 AM]

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