ICSE Class X Math 2015 Solved Paper

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In the given figure ABC is a triangle and BC is parallel to the y-axis. AB and AC intersects the y-axis at P and Q respectively.
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Question : 27
Total: 52
Find the equation of the line AC.
Solution:  
Equation of AC,
Coordinates of A(4,0) and C(2,4)
y0=
0+4
4+2
(x4)

3y=2x8
2x3y8=0
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