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Write the coordinates of each points on the lines 2x – y + 1 = 0 and 3x – 2y + 3 = 0. Find the co-ordinates of the point of intersection of the lines. |
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Answer» The line 2x - y + 1 = 0 x = 2 then 4 - y + 1 = 0 y = 5; (2,5) The line 3x - 2y + 3 = 0 x = 3 then 9 - 2y + 3 = 0 2y = 12; y = 6; (3, 6) 4x - 2y + 2 = 0 3x + 2y + 3 = 0 (1) + (2), x - 1 = 0 x = 1 x = 1 (put value in (1)) 4x 1 - 2y + 2 = 0 y = 3 intersecting points = (1, 3) |
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