Question

Find the point on the terminal side of θ =-3pie/4 that has an x coordinate of -1

Answer 1

because x=-1 that's why tan is -1?

Answer 2

Can somebody please explain >.<

Answer 3

is it because x coordinate is -1?
so it would be the opposite of 3pie/4?

Answer 4

let me rephrase that, I understand the x coordinate of -1,
I know that 3pie/4 is in quadrant 3, what throws me off is the negative sign in front of it.

Answer 5

okay...?

Answer 6

\[\text{Tan}\left[\frac{-3\pi }{4}\right]\text{=}\text{Tan}[-135 {}^{\circ}]=1 \]The point of interest is (-1,-1)

Answer 7

okay, thank you so much :)

Answer 8

You're very welcome.