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x and y are both > 0

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x and y are both > 0

by sanju09 » Fri Jul 23, 2010 4:32 am
x = y - (50/y), where x and y are both > 0

If the value of y is doubled in the equation above, the value of x will
A. decrease
B. stay the same
C. increase four fold
D. double
E. increase to more than double

[spoiler]Source: majortests.com[/spoiler]
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by kvcpk » Fri Jul 23, 2010 4:36 am
sanju09 wrote:x = y - (50/y), where x and y are both > 0

If the value of y is doubled in the equation above, the value of x will
A. decrease
B. stay the same
C. increase four fold
D. double
E. increase to more than double

[spoiler]Source: majortests.com[/spoiler]
put y=1
x = 1-50 = -49
put y=2
x = 2-25 = -23

pick E
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