Lisa says that the expressions 9x - 7x + 12 and 2(x + 6) are not equivalent because one expression has a term that is subtracted and the other does not. Do you agree? Explain.

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.