### Home > A2C > Chapter 8 > Lesson 8.2.4 > Problem 8-160

8-160.

Write the equation of a cyclic function that has an amplitude of 7 and a period of 8*π*. Sketch its graph. Homework Help ✎

In the general equation *y* = *a* · sin[*b*(*x* − *h*)] + *k*, the parameter *a* is the amplitude and *b* is the number of cycles in 2π.

If you need help, see the Math Notes box for this lesson and problem 8-159.

Test your equation on a graphing calculator to see if it meets the given criteria.