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y - y1 = m (x - x1 )
y - 3 = 2 ( x - 1 )
y - 3 = 2x - 2
y = 2x - 2 + 3
y = 2x + 1
2x - y + 1 = 0
b. C ( 7,1 ) & m = 1/ 5
y - y1 = m (x - x1 )
y - 1 = 1/5 ( x - 7 )
y - 1 = 1/5x - 36
y = 1/5x - 36 + 1
y = 1/5x - 35
1/5x - y - 35 = 0
2.a .A (3,-2) & (-1,3)
y - y1 = x - x1
y2 - y1 x2-x1
y - ( -2) = x - 3
3 - (-2) (-1) - 3
y + 2 = x - 3
6 2
2y - 4 = 6x + 18
6x + 2y - 4 - 18 = 0
6x + 2y + 14 = 0
b. K (7,3) & L (-2,-1)
y - y1 = x - x1
y2 - y1 x2-x1
y - 3 = x - 7
(-1) - 3 (-2) - 7
y - 3 = x - 7
- 4 - 9
- 9y + 27 = - 4x + 28
4x - 9y + 27 - 28 = 0
4x - 9y - 1 = 0
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