SP #7: Unit Q Concept 2- Find all trig functions given one trig function and a quadrant

In this concept we see how we can find all trig functions when given just one trig function and a quadrant. You can find this very easily with SOHCAHTOA or just use this method to check your work. This is the problem of my partner, Genesis R., and mine. Please try to answer it before looking at the answers below:
Tanx= -8/5, Cosx= 5rad89/89

However this isn't the only way to find these answers if you want to learn how to get the same result but with Identities then click here to see how it is done.