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13 Feb 2015, 08:42
Kudos
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B
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Difficulty:
25%
(medium)
Question Stats:
70% (00:55) correct
30%
(01:18)
wrong
based on 282
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In the figure above, triangle ABC lies in the coordinate plane (not pictured). What is the slope of line segment AC?
(1) The slope of line segment BC is -5
(2) The slope of line segment BA is 1.1
Attachment:
Slope.png [ 8.67 KiB | Viewed 8523 times ]
13 Feb 2015, 10:48
Kudos
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Unless there is some property I do not know about, I imagine the only way to solve is problem is to test values.
However, without knowing the length of BA and BC, I don't see how we could test values for (x,y).
The correct answer is E.
However, without knowing the length of BA and BC, I don't see how we could test values for (x,y).
The correct answer is E.
14 Feb 2015, 08:26
Kudos
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When two straight lines are perpendicular to each other, the product of their slopes is -1.
Stmt 1 - is clearly insufficient
Stmt 2 - slope of AB = 1.1. Therefore the slope of AC = \(\frac{-1}{1.1}\) - Hence sufficient
Thus B
Stmt 1 - is clearly insufficient
Stmt 2 - slope of AB = 1.1. Therefore the slope of AC = \(\frac{-1}{1.1}\) - Hence sufficient
Thus B
