7. In the hyperbola shown below, one focus is at F1(-2,12) and the other at F2(-2,-8). The points A(-2,8) and B(-2,-4) lie on the graph of the hyperbola. 13 F (-2,12) 12- 11 10 -9 A (-2,8) 7 6 5 -14-13-12-11 -10 -9 -8 -7 -6 -5 -4 -3 -2 0 6 8 10 11 12 13 14 B(-2,-4) F2 (-2,-8) 2 Use the locus definition of a hyperbola and either point A or B to determine the difference in the distance from any point on this hyperbola to each foci. Difference =