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yes, three points in the least number of points that can be used to define a plane. if you used two points you would only have a line, and one point is a point
Three collinear points don't define a plane."Define" means narrow it down to one and only one unique plane, so that it can't be confused with any other one.There are many different planes (actually infinite) that can contain three collinear points, so no unique plane is defined.
False. * * * * * No, it is true. It is false if the line is a vector but not otherwise.
What is used to locate a point in a coordinate plane
Derived from the Pythagorean Theorem, the distance formula is used to find the distance between two points in the plane. The Pythagorean Theorem, a2+b2=c2 a 2 + b 2 = c 2 , is based on a right triangle where a and b are the lengths of the legs adjacent to the right angle, and c is the length of the hypotenuse.