Given: 3j+k/2=15-4k; Prove j=10-3k

And Given 5x-2y=x+14; Prove y=2x-7

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.