I confused how you find the average rate of change by looking at two points on a graph and how is rate of change different from average rate of change?

I'm confused on how you know when a sentence is direct or indirect like the first 4 questions on the test.

Chapter Question

im still a little confused on domain and range and also on figuring out the sentences where you have to decide wheather its direct or inverse.

I am still a little confuse on how you know what general equation goes with what graph, do you just have to memorize it?

QUESTION

i am still confused about domain and range and connecting them with direct/indirect variation. this isn't a question, more of a statement.