Answer:
If your looking at a graph, you find the slope by going to a random point, and using rise/run to go to the next point. A negative slope means the function is decreasing, and a positive slope means the function is increasing.
Answer:
Step-by-step explanation:
a) Yes.

b) Yes

c) Yes

d) No

I beilive the answer to that is niether.
hope this helped!