How do you write the equation using polar coordinates given $x = - 4$ $x=-4$ ?

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How do you write the equation using polar coordinates given $x = - 4$ $x=-4$ ?

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Answer 1 · 2017-09-14T14:21:33

$r = - \frac{4}{cos θ}$ $r=-4/(costheta)$

Explanation:

$∙ x x = r cos θ \leftarrow in polar form$ $•color(white)(x)x=rcostheta larrcolor(blue)" in polar form"$

$\Rightarrow r cos θ = - 4$ $rArrrcostheta=-4$

$\Rightarrow r = - \frac{4}{cos θ}$ $rArrr=-4/(costheta)$

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How do you write the equation using polar coordinates given $x = - 4$ $x=-4$ ?

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How do you write the equation using polar coordinates given $x = - 4$ $x=-4$ ?