Precalculus Examples

$x = 4 θ \cos (θ)$ , $y = 4 θ \sin (θ)$

Step 1

Set up the parametric equation for $x (t)$ to solve the equation for $t$ .

$x = 4 θ \cos (θ)$

Step 2

Replace $t$ in the equation for $y$ to get the equation in terms of $x$ .

$y = 4 θ \sin (θ)$