Dividing by Zero Any non zero number divided by x (where x approaches zero) will approach negative or positive infinity. 1 /1 = 1 1/0.1 = 10 1/0.01 = 100 1/0.001 = 1000 1/0.0001 = 10,000 Et cetera. x 0 -x 0 Iff x 0, then,