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GMAT Problem Solving (PS) | Lines y=√3·x−2 and y=2√3·x−5 intersect at what height above the x axis

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chetan2u wrote:

reto wrote:
Lines y=√3·x−2 and y=2√3·x−5 intersect at what height above the x axis?

A. 0
B. 1/(√3)
C. 1
D. √3
E. 5



Hi..

Most importantpoint..
you can easily find value of x and y as two equations and two variables..
BUT height from x axis will be value of y and not value of x..


y=√3·x−2 and y=2√3·x−5 ...
So y=√3·x−2 =2√3·x−5=> √3·x=3......X=√3

So y =√3*x-2=√3*√3-2=3-2=1

C
can you breakdown the highlighted steps above?
...

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