hard · SAT Math

A social media analyst tracks the total number of shares of a post at the end of each hour after it was posted, with hours equally spaced. Hour (x): 0 1 2 3 4 Shares (y): 10 20 40 80 160 Which equation models the relationship between x and y shown in the table?

1. y = 20(2)^x
2. y = 10(4)^x
3. y = 10x + 10
4. y = 10(2)^x

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