Direction: Solve the following problem.

1. If a varies directly as b and a =

2/3 and b = 2/3, find the equation of variation.

2. If y varies directly as wand y= 3 when w=-4, find y when w = 16.

3. If x varies directly as y and x = 9 wh en y = 15, find y when x = 12.

4. If y = varies directly as x and y = -40 when x = 8, find x when y = 3/2.

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