Convert y=9 from rectangular to polar form

r = 9/sin Ф or r = 9 csc Ф

Step-by-step explanation:

The polar form is represented as:

x = r cos Ф and

y = r sin Ф

We are given:

y = 9

Putting value in y = r sin Ф

9 = r sin Ф

=> r = 9/sin Ф

1/sin Ф = csc Ф

or, r = 9 csc Ф

Step-by-step explanation:

To convert from polar coordinates to rectangular coordinates you must use the following equivalence equations

   i

   ii

In this case we have the following equation

 So we use equation  ii

Remember that

So

if he has no friends he cant give them out to his friends

step-by-step explanation:

no friends = cant give anything out