N is the set of integers that are greater than - 3 and less than 2.

I'm confused on this could anyone me and show me what i need to do to solve it.

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.

Use long division to indentify (12xto the second power+15x-8)divided by 3x