Tia cut a 4 meter 8 centimeter wire into 10 equal pieces. martha cut a 540 centimeter wire into 9 equal pieces. how much longer is one of martha's wires than one of tias

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.