### Home > A2C > Chapter 8 > Lesson 8.2.4 > Problem8-160

8-160.

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

In the general equation$y = a · \operatorname{sin}[b\left(x − h\right)] + k$, 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.