How do you write the equation 4x-5y=104x5y=10 in polar form?

1 Answer
Dec 10, 2016

The equation is r=10/(4costheta-5sintheta)r=104cosθ5sinθ

Explanation:

To convert from cartesian coordinates (x,y)(x,y) to polar coordinates (r,theta)(r,θ), we use the following equations

x=rcosthetax=rcosθ

y=rsinthetay=rsinθ

x^2+y^2=r^2x2+y2=r2

Here the equation is

4x-5y=104x5y=10

4rcostheta-5rsintheta=104rcosθ5rsinθ=10

r(4costheta-5sintheta)=10r(4cosθ5sinθ)=10

r=10/(4costheta-5sintheta)r=104cosθ5sinθ