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13 Nov 2018, 00:42
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
93% (00:25) correct
7%
(00:49)
wrong
based on 99
sessions
History
Date
Time
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Not Attempted Yet
What is the slope of line m ?
(1) The points (1,5) and (5,−7) lie on line m.
(2) Line m is parallel to the line described by 3x + y = 17
(1) The points (1,5) and (5,−7) lie on line m.
(2) Line m is parallel to the line described by 3x + y = 17
13 Nov 2018, 01:04
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Bunuel
Slope of the line, \(m =\frac{y_2 - y_1}{x_2 - x_1}\)
Question: Slope of the line = ?
Statement 1: The points (1,5) and (5,−7) lie on line m.
i.e. \(m =\frac{y_2 - y_1}{x_2 - x_1} = \frac{-7-5}{5-1} = -3\)
SUFFICIENT
Statement 2: Line m is parallel to the line described by 3x + y = 17
For Parallel Lines, \(m_1 = m_2\)
Slope of the given line = -3 = Slope of the line m
SUFFICIENT
Answer: Option D
Archit3110
Major Poster
13 Nov 2018, 03:45
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Bunuel
frm 1:
using formula to
m=y2-y1/x2-x1
==(-7-5)/(5-1)= -3
sufficient
stmnt 2:
y=-3x+17
m=-3
parallel lines hence m=m
sufficient , option D
