## Precalculus (6th Edition) Blitzer

Step 1. The period of the function can be found as $p=\frac{\pi}{3}$ Step 2. Start from $y=tan(x)$ and use transformations: shrink horizontally by a factor of 3 and then stretch vertically by a factor of 2 to obtain the red curve. Step 3. Present the results over $(-\frac{\pi}{6},\frac{\pi}{2})$ for two periods as shown in the figure.