Question

Convert the following equation from rectangular to polar form y = -3

Answer 1

please help me! :)

Answer 2

not really sure about it, but:
\[\sqrt{x ^{2}+y ^{2}}=r\]
\[arctg y/x=\alpha \]
this are the change of coordinates equations. Just put -3 where y

Answer 3

\[\cos(\theta)=\frac{x}{r}\]
\[\sin(\theta)=\frac{y}{r}\]
=>
\[ r \cos(\theta)=x\]
\[ r \sin(\theta)=y\]

One of these equations tells you what to replace y with