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Mathematics for IGCSE & O level - Coordinate Geometry (Section 1 - No. 48)

What is the slope of the line represented by the equation x + 2y = 4?
1/2
-1/2
2
-2

Giải thích

Rewrite in slope-intercept form: 2y = -x + 4 => y = (-1/2)x + 2, slope is -1/2.

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