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  1. Lola is riding her bicycle when a piece of gum gets stuck to the wheel. A graph of the situation is shown at right. Homework Help ✎

    1. What is the diameter of Lola’s bicycle wheel?

    2. How fast is Lola’s bicycle wheel spinning (in revolutions per second)?

    3. Write an equation to model this situation.

The diameter is double the amplitude of the graph.

How long does it take to complete one full cycle of the graph?

The parent graph is y = a cos(bx)

There is a vertical shift.

The graph is flipped over.