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Mathematics for IGCSE & O level - Coordinate Geometry (Section 2 - No. 41)
What is the gradient of a line passing through the points (-1, 2) and (3, -2)?
1
-1
2
-2
Paaiškinimas
Gradient = (-2 - 2) / (3 - (-1)) = -4 / 4 = -1
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