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Payments for Days of Work

SATMAT-IV1GAO

An employee is told that he will be paid ${\$1}$ for his first day of work, but then he will be paid double this (${\$2}$) for the second day, double again (${\$4}$) for the third day, ${\$8}$ for the fourth day, and so on for each successive day of work. Assuming that this pattern continues, this employee's pay is modeled by which of the following types of functions?

A

A linear function.

B

An exponential function.

C

A quadratic function.

D

A cubic function.