Answer:
The period of the function is
![10](https://img.qammunity.org/2019/formulas/mathematics/college/dr6k2nws1cz7mv4xl8fz7ixs0lznfj02tv.png)
Explanation:
The graph completes one cycle in the interval
.
The length of this interval is
.
The graph completes another cycle within the interval
.
The length of this interval too is
.
This means that after every 10 units, the graph repeats itself. Therefore the period is 10.
The graph is a sine function because it is symmetric about the origin.
Its equation is
.