I dont get how to do this can anyone help me out?

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Can someone me i’m confused. will give brainliest and a whole bunch of points

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.