# Modeling With Trigonometric Functions

### Resources for this lesson:

> Glossary

> Calculator Resources

> Teacher Resources: Instructional Notes

## Test and Confirm

Let’s examine the curve of best fit:

The model passes through most of the points and appears to be a good fit. To verify that the model is appropriate, examine the residual plot below:

The residuals are random and fairly close to zero. So, this model is appropriate and may be used to predict future values.

## Apply the Model

Use the curve of best fit to answer the following:

## Check Your Understanding