27 points this is an emergency urgent 10-18 i repeat 10-18

Just give me a sec I know this one

1) (9, 75+360n)

2) (−9, 255+360n)

Step-by-step explanation:

(9, 75) is same as (9, 75 + 360)

so it would be (9, 435)

It can also be expressed as (-9, 75 + 180 degrees)  

so (-9,255) degrees  

In general, (9,75+360 n) for n≥0 represents half of the possible ways of representing the point : (9,75)