Posted by **hmmmm** on Monday, September 25, 2006 at 7:21pm.

change equations to polar form:

1) y= -1

2) x^2 + y^2 = 4

how would i do these questions? thank u

to convert to polar, you use the relationship: x = rcos(theta), and

y = rsin(theta)

1) rsin(theta) = -1,

r = 1-/sin(theta)

2)try this yourself by substituting as in part 1.

but what is theta though? i dunno the angle

don't need to know the angle. Rememeber, it's an equation of a line. As theta varies, r varies. (just like as x varies, y varies).

## Answer This Question

## Related Questions

- Calculus - I wanted to confirm that I solved these problems correctly (we had to...
- precalculus - convert the equation y^2 = 2x -x^2 into polar form. convert the ...
- Advanced Math - Identify the polar form of the linear equation 4x+3y=10. x=rcos(...
- calculus - for what value of r=4sinč have vertical tangent? In polar coordinates...
- Math ! Please Help ! - 1.Graph the polar equation r=3-2sin(theta) 2. Find the ...
- PRECALCULUS HELP PLEASE! - convert the polar equation to rectangular form. 1.) ...
- Pre-calculus; urgent ! Please help ! - 1.Graph the polar equation r=3-2sin(theta...
- PRECALCULUS - convert the polar equation to rectangular form. 1.) r sec(theta...
- Calculus please help ! - 1.Graph the polar equation r=3-2sin(theta) 2. Find the ...
- Polar equations - write the polar eqaution 3 = r cos (theta - 315) in ...

More Related Questions