Chapter 9.1, Problem 73AYU

In Problems 69-76, the letters $x\text{ and }y$ represent rectangular coordinates. Write each equation using polar coordinates $\left(r,\theta \right)$.

$x\text{ = }4$

To determine

To find: Equation using polar coordinates $(r,\theta )$. The Letters $x\text{and}y$ represent rectangular coordinates.

Answer to Problem 73AYU

Solution:

$r\cos \theta =4$

Explanation of Solution

Given:

$x=4$

Calculation:

Use the formula,

$x=r\cos \theta$   $y=r\sin \theta$

We have,

$x=4$

$r\cos \theta =4$