You begin solving the equation 3+4x=51 3 + 4 x = 51 by subtracting 3 3 from both sides. which is the best choice for step 2 2 ?

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.