## anonymous one year ago Can someone please help me (pre cal): 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.

1. anonymous

$-\frac{ 3\pi}{ 4 }$

2. Loser66

Count with me!! |dw:1437708800198:dw|

3. anonymous

$-\frac{ 5\pi }{ 4 }?$

4. Loser66

yup,

5. Loser66

now, what you want?? -3pi/4, right? where is it?

6. anonymous

would it be -7pi/4 because that is opposite of it

7. Loser66

|dw:1437709056798:dw|

8. Loser66

|dw:1437709088105:dw|

9. Loser66

In your problem, if the x-coordinate is -1, there is no way to get $$\theta =-3\pi/4$$. Why?? because it is here|dw:1437709173058:dw|

10. Loser66

the angle has x-coodinate =-1 is -4pi/4= -pi, not -3pi/4

11. Loser66

I think, you mix 2 problems together to "create" this problem, hahahaha

12. anonymous

Thank you so much for taking the time to explain, I think I understand it somewhat

13. anonymous

So if it told you to show your work in the problem would I just explain how I used the graph or is there a way to write it out

14. Loser66

yes, describe on words, like: from 0, go clockwise ......