Find the point on the terminal side of θ = negative three pi divided by four that has an x coordinate of -1. Show your work for full credit.

Question

anonymous · Answer

I am really confused, this lesson wasn't descriptive and I don't even know where to start.

anonymous · Answer

@Michele_Laino

anonymous · Answer

@triciaal

triciaal · Answer

terminal side  means where it ends
draw a grid and mark where x = -1
angles are measured from the right horizontal in an anti-clockwise direction
can you sketch this using the draw tool so I can see it?
x = r cos theta = -1     (y = r sin theta)

triciaal · Answer

a complete circle = 2 Pi

anonymous · Answer

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anonymous · Answer

I know this is not complete Im just confuse. Im sorry.

triciaal · Answer

that was correct now  mark the angle

anonymous · Answer

What I dont understand is how you got the y point.

michele_laino · Answer

hint:
here is the angle $\theta= - 3\pi/4$
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