{25 points] the point (3, -4) is on the terminal side of an angle ø. what is cos ø? a.) - 3/5 b.) 3/5 c.) - 3/4 d.) 3/4 e.) 3

The point (3, -4) is on the terminal side of the Ø implies that the hypotenuse has a length of 5, by the pythagorean theorem.
Now recall cosØ = x / r where r is the hypotenuse.
So cosØ = 3 / 5.