What is the value of tan thata in the unit circle below

This needs to be done quick you are studying different function tools and begin working with this function y=-160-9(x) use the equation to answer the question y=-160-9(x) what is the y value when x equals -13? y=-160-9(x)

What is the measure of the smallest angle in the diagram? 15 29 32 45

Write an equation for the function that includes the points (1,4/5) and (2,2/3)