In the diagram, the length of segment QV is 15 units. Line m is a perpendicular bisector of line segment S Q. It intersects line segment S Q at point R. Line m also contains points T and V. Line segment T S is 3 x 2. Line segment S V is 4 x minus 1. What is the length of segment TQ? 4 units 11 units 14 units 15 units