We need to find if either of the lines have a +ve slope.
Both the statements do not provide info to conclude the line has a +ve slope. E IMO
Slopes DS
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Source: Beat The GMAT — Data Sufficiency |
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shankar.ashwin
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parul9
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statement 1 tells nothing about the slope of b
statement 2 compares absolute values of slope. Nothing can be derived from that either.
Both these statements are hence insufficient. So, A,B and D are out.
Combining the two statements also leads to nothing. C is out.
Answer: E.
statement 2 compares absolute values of slope. Nothing can be derived from that either.
Both these statements are hence insufficient. So, A,B and D are out.
Combining the two statements also leads to nothing. C is out.
Answer: E.
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gmatdriller
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I disagree with the bold, red statement above.parul9 wrote:statement 1 tells nothing about the slope of b
statement 2 compares absolute values of slope. Nothing can be derived from that either.
Both these statements are hence insufficient. So, A,B and D are out.
Combining the two statements also leads to nothing. C is out.
Answer: E.
From the original equation (y = px - 2), we know the y-intercept is negative.
Also, from (1) we know x-intercept is negative. So, both facts imply p(slope)
is NEGATIVE.
Thus, we can respond to the question: "is m or p > 0?"
No, p is NOT > 0
Other opinions please.
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bpdulog
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I think he is right actually. All that tells us is that line b cuts through (-2,-2) but doesn't tell us what the slope of the line is.gmatdriller wrote:I disagree with the bold, red statement above.parul9 wrote:statement 1 tells nothing about the slope of b
statement 2 compares absolute values of slope. Nothing can be derived from that either.
Both these statements are hence insufficient. So, A,B and D are out.
Combining the two statements also leads to nothing. C is out.
Answer: E.
From the original equation (y = px - 2), we know the y-intercept is negative.
Also, from (1) we know x-intercept is negative. So, both facts imply p(slope)
is NEGATIVE.
Thus, we can respond to the question: "is m or p > 0?"
No, p is NOT > 0
Other opinions please.
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gmatdriller
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@bpdulog:
From y = px - 2, we know that it cuts y-axis at (0,-2)
The x intercept of line b < 0. : same line cuts x-axis at x < 0
Example: on x-axis we may get (-1,0), (-2,0) on line b since line b cuts x-axis at a negative value.
Pls view the attached.
[/img]
Line b: y = px - 2: the line cuts y-axis at y = -2"I think he is right actually. All that tells us is that line b cuts through (-2,-2) but doesn't tell us what the slope of the line is.
From y = px - 2, we know that it cuts y-axis at (0,-2)
The x intercept of line b < 0. : same line cuts x-axis at x < 0
Example: on x-axis we may get (-1,0), (-2,0) on line b since line b cuts x-axis at a negative value.
Pls view the attached.
[/img]
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