Question 1021389
the point is at (-2,9).
this means the angle is in the second quadrant.
the adjacent side to the angle is -2.
the opposite side to the angle is 9.
the hypotenuse of the right triangle formed is sqrt((-2)^2 + 9^2).
this is equal to sqrt(4+81) = sqrt(85)


you have:
adjacent side is -2.
opposite side is 9.
hypotenuse is sqrt(85).


the angle is theta.


you have:


sin(theta) = opp/hyp = 9/sqrt(85).
cos(theta) = adj/hyp = -2/sqrt(85).
tan(theta = opp/adj = 9/-2.