### Home > PC > Chapter 6 > Lesson 6.4.2 > Problem 6-159

6-159.

Draw a sketch of the situation. From the sketch, find:

1. Amplitude

2. Vertical Shift

3. Horizontal Shift

4. Period

5. From the period, find the frequency (*b*) which is needed for the equation.

6. Use the general form for the sine or cosine to write the equation.

7. Set your function equal to 12 inches and solve.