Help I just want to know if this is cos, sin, or tan?

(This is geometry)

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

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

For every touchdown scored by the timberwolves the mascot does three backflips if the cheerleaders set off six confetti cannons how many touchdowns did the timberwolves score if the cheerleader set of 18 confetti cannons