Math question. Geometry

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points

How can you use synthetic substitution to tell whether a given binomial is a factor of a polynomial?