### Home > PC3 > Chapter 11 > Lesson 11.1.4 > Problem11-73

11-73.

Suppose you are given a graph of $r = f(θ)$ where $f$ is some function.

1. What equation would rotate the graph $90º$ counterclockwise?

2. What equation would rotate the graph $90º$ clockwise?

Once you answer the questions, remember to check your answers by using the selected answers at the back of your book.