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Q: When you have three collinear points there is exactly one?

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I think you mean: Are any three points contained in exactly one plane? only if they're not collinear... I think

3 non-collinear points define one plane.

The definition of a non-collinear line is that this is a line on which points do not lie on one line. The opposite of this is a collinear point. Collinear points refer to three points that do fall on a straight line.

Only one if they are non-collinear. An infinite number if they are collinear.

Collinear with the other two.

Related questions

yes

Collinear points

Exactly one.

Exactly one.

I think you mean: Are any three points contained in exactly one plane? only if they're not collinear... I think

Exactly one. No more and no less.

3 non-collinear points define one plane.

There are an infinite number of any kind of points in any plane. But once you have three ( 3 ) non-collinear points, you know exactly which plane they're in, because there's no other plane that contains the same three non-collinear points.

As long as at least two of them are different points, exactly one line.

Three non-collinear points always define exactly one and only one plane. That's why a 3-legged table or chair never wobbles.

The definition of a non-collinear line is that this is a line on which points do not lie on one line. The opposite of this is a collinear point. Collinear points refer to three points that do fall on a straight line.

only one line

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