Multiple Choice The graphs below model waves of red, blue, and yellow light. Which equation best models blue light?
According to the graph, one blue cycle takes 480 nanometers to complete, so the period is 480.
To write an equation, first find b.
How can you check if you found the correct value for b?
Multiply the value you found for b by the number of nanometers where the first cycle ends. The product should be 2π.
An equation for blue light is
Write an equation for the function.
Error Analysis A student drew this graph for the function