Line chart with changing start and end dates

Hello,

I am looking to make a line chart where the start date and end date are selected by two drop down cells. In the attached document C9 and C10 are drop downs dependent on the dates in the top of the table. Is it possible to have the chart below change to reflect the range of whatever dates are selected in the cells?

If possible, I would like the chart as it is now (it updates the range based on the date) to be the default when no dates are selected.

Thanks,
B