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If line M passes through the coordinate system shown above, what is th

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Joined: 02 Sep 2009
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If line M passes through the coordinate system shown above, what is th  [#permalink]

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30 Aug 2018, 03:48
00:00

Difficulty:

35% (medium)

Question Stats:

80% (00:40) correct 20% (00:28) wrong based on 15 sessions

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If line M passes through the coordinate system shown above, what is the slope of line M?

(1) Line M passes through Quadrant III.
(2) Line M passes through Quadrant IV.

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Re: If line M passes through the coordinate system shown above, what is th  [#permalink]

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30 Aug 2018, 06:28
Bunuel wrote:

If line M passes through the coordinate system shown above, what is the slope of line M?

(1) Line M passes through Quadrant III.
(2) Line M passes through Quadrant IV.

Question stem:- what is the slope of line?
Unique value-->sufficient
More than one value--->>>insufficient

St1:- Line M passes through Quadrant III.
1) Line M parallel to x-axis in Q3, slope=0
2) Line M perpendicular to x-axis, slope=undefined
3) Line M pass through origin, slope>0
No unique value of slope.
Insufficient.

St2:-Line M passes through Quadrant IV.
1) Line M parallel to x-axis in Q4, slope=0
2) Line M perpendicular to x-axis, slope=undefined
3) Line M pass through origin, slope<0
No unique value of slope.
Insufficient.

Combined, Line M passes through Quadrant III & IV.
possibilities:
1) Line M parallel to x-axis , slope=0
2) Line M passing through II,III, and IV, slope<0
3) Line M passing through III,IV, and I slope>0
No unique value of slope.
Insufficient.

Ans. (E)
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PKN

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Re: If line M passes through the coordinate system shown above, what is th &nbs [#permalink] 30 Aug 2018, 06:28
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