18. The vertices of a triangle ABC are A (1, 1), B (-3,4), C (2,-5). The equation to the
altitude through the vertex A is
1) 5x +9y+ 4 = 0 2) 5x +9y - 4 = 0 3) 5x - 9y+4= 0 4) 5x - 9y - 4 = 0
The emation
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Answer:
option c is correct 5x - 9y +4=0
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