Question

find an equivalent equation in rectangular form for r-6sin=2coss

Answer 1

do you know the substitutions?

Answer 2

ye i got to x^2 +y^2=2x+6y but i dont know where to go from there2

Answer 3

put sin .. = y/sqrt(x^2+y^2) and cos ..= x/sqrt(x^2+y^2) and r = sqrt(x^2+y^2)
and then simplify

Answer 4

but the final ansswer should be in rectangular form meaning it hould have no r or anythuing

Answer 5

yeah ... that's why i am telling you to substitute r's and sines and cosines ... as above

Answer 6

but either way i still end up with x^2 + y^2 = 2x+ 6y can i plz see ur woprk and final anwer

Answer 7

your answer is correct.
what do you need?

Answer 8

your answer can be written in standard form for a circle but that's it...

Answer 9

is that what you want to do?

Answer 10

ye

Answer 11

y would it equal 3?

Answer 12

i mean t

Answer 13

ok.. let's start with your equation:
x^2 + y^2 = 2x + 6y

Answer 14

move everything on that right side over to the left side. can you do that?

Answer 15

ye

Answer 16

so what do you have?

Answer 17

x(x-2)=-y(y-6)

Answer 18

don't factor...

Answer 19

and your right side should be 0

Answer 20

x^2 - 2x + y^2 -6y