First slide

Equation of line in Straight lines

Question

The equation of perpendicular bisector of sides AB, BC of $∆$ ABC are x-y-5=0, x+2y=0 respectively and A(1,-2) then coordinates of C are

Moderate

A

(1,0)
B

(0,1)
C

(5,0)
D

(0,0)

Solution

B is image of A wrt to x-y-5=0
C is image of B wrt to x-2y=0

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