Chapter 11, Problem 18RE

To determine

To determine: The appropriate window and graph the polar curve on a graphing calculator.

Answer to Problem 18RE

The required window is $\left[-1,3\right]$ by $\left[-5,5\right]$ .

Explanation of Solution

Given information:

The equation: $r\cos \theta =1$

Calculation:

The given equation is $r\cos \theta =1$ .

The interval of the above equation is $0\le \theta \le 2\pi$ .

So, the window is $\left[-1,3\right]$ by $\left[-5,5\right]$ .

The required graph is shown below:

  

From the above graph it is seen that the required graph is a Vertical line at the point $\left(1,0\right)$ ; where $x=r\cos \theta$ and $x=1$ .

Hence, the required window is $\left[-1,3\right]$ by $\left[-5,5\right]$ .