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The distance from the Xaxis to point P is half the distance
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26 Dec 2009, 17:11
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The distance from the Xaxis to point P is half the distance from the yaxis to point P. if the coordinates of P are (x,7), how many units is P from the yaxis? A. 3.5 B. 7 C. 9.8 D. 10.5 E. 14
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Re: Distance Question
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26 Dec 2009, 17:25
tania wrote: The distance from the Xaxis to point P is half the distance from the yaxis to point P. if the coordinates of P are (x,7), how many units is P from the yaxis?
A. 3.5 B. 7 C. 9.8 D. 10.5 E. 14
The ans is E.
Can someone explain me this problem? Couple of things: when we talk about the distance from the point to the line (any line including x and yaxis), the distance means the shortest distance, which is the length of the perpendicular from the point to the given line. Back to the question. The point x has the coordinates (x,7), which means that it's somewhere on the line y=7. Hence the distance from this point to the Xaxis is 7 units. As the distance from the point to Xaxis is half of the distance from it to the Yaxis, then the distance from it to the Yaxis is 7*2=14. Answer: E. Hope it's clear.
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Re: Distance Question
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26 Dec 2009, 23:58
P=(x,7) > dis from pt. P to x axis=7 units & dis from pt P to Y axis =x units as per Q The distance from the Xaxis to point P = half the distance from the yaxis to point P >7=1/2*(x) or x=7*2=14 units
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Re: The distance from the Xaxis to point P is half the distance
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20 Nov 2013, 11:38
Easy one to achieve.
According to condition distance from xaxis= 0.5(distance from yaxis) and P is (x,7) which means distance from xaxis P is always 7 unit far. Simply ask what is the distance from y so that 2x=y?
So, Distance from y=14.
E is the answer. No calculation just mind work.



Manager
Joined: 18 Oct 2013
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Schools: Duke '16, Johnson '16, Kelley '16, Tepper '16, Marshall '16, McDonough '16, Insead '14, HKUST '16, HSG '15, Schulich '15, Erasmus '16, IE April'15, Neeley '15
GMAT 1: 580 Q48 V21 GMAT 2: 530 Q49 V13 GMAT 3: 590 Q49 V21
WE: Information Technology (Computer Software)

Re: The distance from the Xaxis to point P is half the distance
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20 Nov 2013, 11:39
Easy one to achieve.
According to condition distance from xaxis= 0.5(distance from yaxis) and P is (x,7) which means distance from xaxis P is always 7 unit far. Simply ask what is the distance from y so that 2x=y?
So, Distance from y=14.
E is the answer. No calculation just mind work.



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Re: The distance from the Xaxis to point P is half the distance
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14 Nov 2015, 13:22
x is either 14 or 14, thus we know that the distance from y axis is 14 or 14. E



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Re: The distance from the Xaxis to point P is half the distance
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04 Jul 2018, 08:12
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Re: The distance from the Xaxis to point P is half the distance &nbs
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