The graph below is one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is correct. 
Definitions:
Probability Values
Numerical values that represent the likelihood of the occurrence of a specific event or outcome.
Mutually Exclusive
Two or more events that cannot happen at the same time; the occurrence of one event precludes the occurrence of the other(s).
Nonzero Probabilities
Probabilities that are greater than zero, indicating that an event has a chance of occurring.
Sample Space
The set of all possible outcomes or results in an experiment or a random trial.
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