The distance of a point in the 3-D system from the origin A. is defined by the absolute value of the vector from the origin to this point. is the square root of the square of the sums of the x-, y-...

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Extracted text: The distance of a point in the 3-D system from the origin A. is defined by the absolute value of the vector from the origin to this point. is the square root of the square of the sums of the x-, y- and z-values. C. is the square root of the sum of the squares of x-, y- and z-values. D. can either be negative or positive. В. In parametrizing lines connected by two points in 3-D plane, A. there is only one correct parametrization. B. symmetry equations may not exist. C. a, b, andc must not be equal to 0. D. the vector that connects the two points is a scalar multiple of the vector containing the direction numbers.