How do you change the rectangular equation $x + y = 0$ $x+y=0$ into polar form?

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Answer 1 · 2016-09-17T17:40:47

$tan θ = - 1$ $tan theta=-1$

$x + y = 0$ $x+y=0$

$r \cdot cos θ + r \cdot sin θ = 0$ $r*cos theta+r*sin theta=0$

$cos θ + sin θ = 0$ $cos theta+sin theta=0$

$\frac{cos θ}{cos θ} + \frac{sin θ}{cos θ} = \frac{0}{cos θ}$ $cos theta/cos theta+sin theta/cos theta=0/cos theta$

$1 + tan θ = 0$ $1+tan theta=0$

$tan θ = - 1$ $tan theta=-1$

God bless....I hope the explanation is useful.

How do you change the rectangular equation x+y=0x+y=0x+y=0 into polar form?