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At what point does the line ax + y +b=0

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Source: — Data Sufficiency |
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by superdesi2100 » Sun Mar 28, 2010 9:21 am
ax+y+b=0
y=-ax-b

The point where the line intersects y axis, x=0 => y=-b is the point where the line intersects y axis.

a) b = 5 Sufficient.

b) a = 3 NOT sufficient.

Answer should be A.
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by eaakbari » Sun Mar 28, 2010 10:42 am
Since its intersecting with y axis, x = 0

y + b = 0

1 - sufficient

2 - insuff

Answer - A
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