How do you convert (4, 0)(4,0) into polar form?

1 Answer
Sep 29, 2016

(4,0) in rectangular coordinates = (4,0) in polar coordinates.

Explanation:

In rectangular coordinates, (x,y) represents the x and y position of the point in the plane.
In polar coordinates, it is represented by (r, thetaθ), where r is the distance from the origin and thetaθ is the counterclockwise angle in radians.
The conversion from rectangular to polar can be achieved by the formulas:
r^2 = x^2+y^2r2=x2+y2
theta = arctan(y/x)θ=arctan(yx)

In our case, r^2 = 4^2 + 0r2=42+0 =>r=4r=4
And arctan(0/4) = 0 => theta = 0arctan(04)=0θ=0

So, our polar coordinates are (4,0).