In Exercises 1-4, use the diagram. 1. Name a pair of parallel lines. 2. Name a pair of perpendicular lines.
3. Is AB BC ? Explain.
4. Is BD 1 CD? 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.