alleryStart learning →In the plane ax + by + cz + d = 0, the numbers a, b, c are
Athe intercepts on the axes
Bthe coordinates of a point
Cthe distances from the origin
Dthe direction ratios of its normal
Answer & Solution
Correct answer: D. the direction ratios of its normal
The equation comes from a(x - x1) + b(y - y1) + c(z - z1) = 0, where a, b, c are the normal's ratios.
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