Cassie opens a bank account with two dollars. She adds four dollars on Day 1, eight dollars on Day 2, and sixteen dollars on Day 3. She continues this pattern for 15
days.
Which statement describes why this sequence is a function.
Select each correct answer.
The graph of this sequence would pass the horizontal line test.
The graph of this sequence would pass the vertical line test.
Each amount of dollars corresponds to a unique day in this sequence.
None of the above.