What is the change in elevation from -6 km to -14 km?

Pick the description of a geometric object that best matches the real world object box for a deck of card

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.

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5