Marvin uses apples to make apple bread. the ratio of apples to loaves is 12: 2. what is the equivalent ratio for 5 loaves of bread?

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.