B. Tell whether the following statement is always true (AT), sometimes true (ST), or never true (NT).
_____1) The measure between two points A and B with coordinates -2 and -6 respectively can be
negative.
_____2) Given two rays with the same endpoint, then they are opposite rays.
_____3) Given two opposite rays, then they have the same endpoint.
_____4) A line has two endpoints.
_____5)AB is the same as BA.
_____6) If A is between C and T, then AC and AT are opposite rays.
_____7)BA and BC are opposite rays, then B is between A and C.
_____8) D, O and T are collinear points. O is between D and T and DT = 2DO, therefore DO = OT
_____9) A ray consists of one point.
_____10)XY and XZ are opposite rays, then X, Y and Z are collinear points.